RADIATION EFFECTS ON AN UNSTEADY MHD NATURAL CONVECTIVE FLOW OF A NANOFLUID PAST A VERTICAL PLATE
|
|
- Howard Mason
- 5 years ago
- Views:
Transcription
1 RADIATION EFFECTS ON AN UNSTEADY MHD NATURAL CONVECTIVE FLOW OF A NANOFLUID PAST A VERTICAL PLATE by Loganathan PARASURAMAN a *, Nirmal Chand PEDDISETTY a and Ganesan PERIYANNAGOUNDER a a Department o mathematics, Anna University, Chennai , India Numerical analysis is carried out on an unsteady MHD natural convective boundary layer low o a nanoluid past an isothermal vertical plate in the presence o thermal radiation. The governing partial dierential equations are solved numerically by an eicient, iterative, tri-diagonal, semi-implicit inite-dierence method. In particular, we investigate the eects o radiation, magnetic ield and nanoparticle volume raction on the low and heat transer characteristics. The nanoluids containing nanoparticles o aluminium oxide, copper, titanium oxide and silver with nanoparticle volume raction range less than or equal to 0.04 are considered. The numerical results indicate that in the presence o radiation and magnetic ield, an increase in the nanoparticle volume raction will decrease the velocity boundary layer thickness while increasing the thickness o the thermal boundary layer. Meanwhile, an increase in the magnetic ield or nanoparticle volume raction decreases the average skin-riction at the plate. Excellent validation o the present results has been achieved with the published results in the literature in the absence o the nanoparticle volume raction. Keywords: MHD; natural convection; nanoluid; semi-ininite vertical plate; thermal radiation 1. Introduction The study o magnetohydrodynamic low and heat transer has received considerable attention in recent years due to its wide variety o applications in engineering and technology such as MHD generators, plasma studies, nuclear reactors and geothermal energy extractions. The presence o an external magnetic ield is used as a control mechanism in material manuacturing industry, as the convection currents are suppressed by Lorentz orce which is produced by the magnetic ield. Radiation heat transer is also essential in many engineering areas as the design o pertinent equipment involves processes occurring at high temperatures. Nuclear power plants, gas turbines and various propulsion devices or aircrat, missiles, satellites and space vehicles are examples o such engineering areas. The natural convection heat transer is a vital phenomenon in the cooling mechanism o various engineering systems due to its minimum cost, low noise, smaller size and reliability. Ostrach *Corresponding Author: Nirmal Chand Peddisetty Tel: , address: logu@annauniv.edu,nirmalprasad000@gmail.com 1
2 [1] reviewed various industrial and engineering applications o natural convection such as thermal insulators or buildings, the electronics industry, solar collectors and cooling systems or nuclear reactors. The study o magneto hydrodynamic ree convection through a viscous luid past a semiininite vertical plate is considered very essential to understand the behavior o the perormance o luid motion in several applications. The problem o natural convection in a regular luid past a vertical plate is a classical problem irst studied theoretically by Pohlhausen []. The similarity solution to this problem was given by Ostrach [1]. Siegel [3] was the irst to study the transient reeconvective low past a semi-ininite vertical plate by integral method. Gebhart [4] have studied this problem by an approximate method. Hellums and Churchill [5] employed an explicit inite dierence technique, which is conditionally stable and convergent. Takhar et al. [6] have considered transient ree convection past a semi-ininite vertical plate with variable surace temperature. Soundalgekar and Ganesan [7] have studied transient ree convection or the isothermal plate by an implicit inite dierence method which is unconditionally stable and convergent. Convective lows with radiation are also encountered in many industrial processes such as heating and cooling o chambers, energy processes, evaporation rom large reservoirs, solar power technology and space vehicle reentry. Thermal radiation eects o an optical thin gray gas bounded by a stationary vertical plate are investigated by England and Emery [8]. Soundalgekar and Takhar [9] have studied the radiation ree convective low o an optically thin gray gas past a semi-ininite vertical plate. Hossain and Takhar [10] have considered the radiation eects on mixed convection along an isothermal vertical plate. Das et al. [11] analyzed radiation eects on low past an impulsively started ininite vertical plate. Fluid cooling and heating plays an important role in many industries and engineering applications particularly in nuclear reactors, thin ilm solar energy collectors, manuacturing, power generation and transportation. In these applications use o common heat transer luids such as water, ethylene glycol and engine oil limits the heat transer capabilities due to their poor heat transer properties. The low thermal conductivity o the conventional heat transer luids is a primary limitation in enhancing the perormance and the compactness o many engineering electronic devices. Nanoluid is the nanotechnology based heat transer luid that can be derived by stably suspending nanometer-sized particles in conventional heat transer luids. Nanoluid is the term irst coined by Choi [1] to describe this new class o nanotechnology based luids that exhibit thermal properties superior to those o their host luids. Nanoluids were ound to be devoid o problems such as sedimentation, erosion and high pressure drop due to the small size o the particles and small volume raction o particles needed to heat transer enhancement as compared with micro particle slurries. The nanoparticles used in nanoluids are made o metals (Al, Cu, carbides, metal oxides, nitrides or nonmetals (Graphite, Carbon nanotubes and the base luid is usually liquid such as water or ethylene glycol. A comprehensive survey o convective transport in nanoluids was made by Buongiorno [13] who had considered seven slip mechanisms that can produce relative velocity between the nanoparticles and the base luid. He showed that Brownian diusion and thermophoresis are important mechanisms in laminar low. Kuznetsov and Nield [14] investigated the natural convective boundary layer low o a nanoluid past an ininite vertical plate by considering thermophoresis and Brownian motion o nanoparticles. Nield and Kuznetsov [15] also have studied Cheng-Minkowycz
3 problem or natural convection boundary layer low in a porous medium saturated by nanoluids. Khan and Pop [16] reported the boundary layer low o nanoluid past a stretching sheet. The mixed convection MHD low o a nanoluid over a stretching sheet with the eects o viscous dissipation and variable magnetic ield is analyzed by Habibimatin et al. [17]. Hamad et al. [18] investigated the magnetic ield eects on the ree convection low o a nanoluid past a semi-ininite vertical lat plate. Steady MHD ree convective low o a nanoluid past a vertical plate is investigated by Chamkha and Aly [19]. Entropy analysis or MHD low over a nonlinear stretching inclined transparent plate embedded in a porous medium due to solar radiation is investigated by Dehsara et al. [0]. MHD mixed convective boundary layer low o a nanoluid through a porous medium due to an exponential stretching sheet is investigated by Ferdows et al. [1]. Ahmed et al. [] studied numerically the mixed convection boundary layer low rom a vertical lat plate embedded in a porous medium illed with nanoluids. Hady et al. [3] have analyzed the radiation eects on viscous low o a nanoluid and heat transer over a nonlinearly stretching sheet. Shakhaoath khan et al. [4] investigated the eects o magnetic ield on radiative low o a nanoluid past a stretching sheet. Recently, Loganathan et al. [5] have reported radiation eects on an unsteady natural convective low o a nanoluid past an ininite vertical plate. To authors knowledge, no studies have been communicated so ar with regard to on an unsteady MHD natural convective low o a nanoluid past an isothermal semi-ininite vertical plate in the presence o radiation. The objective o this paper is to analyze the eects o radiation, magnetic ield and nanoparticle volume raction on transient natural convective low o Al O 3, Cu, TiO and Ag water nanoluids past a semi-ininite vertical plate. The present study is o immediate application to all those processes which are highly aected by heat enhancement concept and magnetic ield. The results are validated against nanoparticle volume raction φ = 0 and are shown graphically.. Mathematical Analysis A two dimensional low o a viscous incompressible nanoluid past a semi ininite vertical plate is considered. Initially the plate and the luid are at the same temperaturet. Then at time t ' 0, the temperature o the plate is suddenly raised to T w and is maintained at the same value. We also assume that x - coordinate to be directed upward along the plate and y - coordinate is taken normal to the plate. The luid is water based nanoluid containing dierent types o nanoparticles: aluminium oxide (Al O 3, copper (Cu, titanium oxide (TiO and silver (Ag. In this study, nanoluids are assumed to behave as single phase luids with local thermal equilibrium between the base luid and the nanoparticles suspended in them so that no slip occurs between them. A schematic representation o physical model and coordinate system is depicted in ig. 1. The thermo physical properties o the nanoparticles (Re. [6] are given in table 1. The basic unsteady momentum and thermal energy equations according to the model or nanoluids given by Tiwari and Das [7] satisying Boussinesq approximation (Schlichting [8] in the presence o radiation and magnetic ield are as ollows: u u 0 x y (1 3
4 T T T 1 T qr u v kn t ' x y cp y y n u u u u n B0 u u v n g( T T t ' x y y n n ( (3 X Vertical plate Temperature proile Nanoluid Magnetic ield Velocity proile g u Y v The initial and boundary conditions are: Figure 1 Physical model and coordinate system t ' 0, u 0, v 0, T T or all x and y t ' 0, u 0, v 0, T T at x 0 u 0, v 0, T T at y 0 w u 0, v 0, T T as y (4 Here u and v are the velocity components in the x - and y- directions; t ' is the time; g is the acceleration due to gravity; T Temperature o the luid; T temperature o the luid ar away rom the plate; T w Temperature o the plate; q r is the radiative heat lux and B 0 is the strength o applied magnetic ield. For nanoluids the expressions o density n, thermal expansion coeicient (ρβ n and heat capacitance are given by c p n 4
5 n 1 s 1 n s cp 1 cp cp n s (5 Table 1 Thermo-physical properties o water and nanoparticles ρ (Kgm -3 C p (JKg -1 K -1 k(wm -1 K -1 βx10-5 (K -1 H O Al O Cu TiO Ag model [9] is given by The eective thermal conductivity o the nanoluid according to Hamilton and Crosser ke ks n 1 k n 1 ( k ks k k n 1 k ( k k s s Where n is the empirical shape actor or the nanoparticle. In particular, n = 3, or spherical shaped nanoparticles and n = 3/ or cylindrical ones. φ is the solid volume raction o nanoparticles, µ is the dynamic viscosity, υ is the kinematic viscosity, β is the thermal expansion coeicient, ρ is the density and k is the thermal conductivity. Here the subscripts n, and s represent respectively the thermo physical properties o the nanoluids, base luid and the solid nanoparticles respectively. Assuming the Rosseland approximation (Re. 30, leads to the radiative heat lux: (6 q r 4 * 3k * 4 T y (7 respectively. Where σ* and k*are Stean-Boltzmann constant and the mean absorption coeicient q r * * 4 4 4a ( T T y I the temperature dierences within the low are suiciently small such that T 4 may be expressed as a linear unction o temperature, then expanding T 4 in Taylor series about T and neglecting higher order terms, we get ( T T T T (9 We now introduce the ollowing non-dimensional quantities in Eq. (1 to Eq. (3: 5
6 X x, Y L ygr L 1/4, U ulgr 1/, V vlgr 1/4 t ' Gr, t L 1/, T T T T w 3 3 1/ gl ( Tw T B0 L 16 a* T, Pr, Gr, L Gr M and R (10 1/ Gr k Where Gr is the Grasho number and Pr is the Prandtl number Now Eq. (1 to Eq. (3 in view o the above Eq. (5 to Eq. (9 are: U V X Y 0 (11 1 kn 1 R U V t X Y k Pr Pr cp Y 1 s cp (1 U U U U V t X Y 1 1 U s 1 MU.5 Y s 1 (13 1 The transormed boundary conditions are: t 0, U 0, V 0, 0 or all X and Y t 0, U 0, V 0, 0 at X 0 U 0, V 0, 1 at Y 0 U 0, V 0, 0 as Y (14 Let k E1 k n 1 1 Pr c 1 c p s.5 p, E 1 1, 1 s 1 6
7 s E3, E4, E5 s s cp 1 1 s 1 cp (15 Model Table Thermal conductivity and dynamic viscosity or various shapes o nanoparticles Shape o nanoparticles Thermal conductivity Dynamic viscosity I Spherical kn ks k ( k ks k k k ( k k s s / (1 n.5 II Spherical kn ks k ( k ks k k k ( k k s s µ µ n ( III Cylindrical (nano tubes k k n 1 1 ks k ( k ks 1 ks k ( k ks / (1 n.5 IV Cylindrical (nano tubes k k n 1 1 ks k ( k ks 1 ks k ( k ks µ µ n ( Numerical procedure The above set o two dimensional, coupled, nonlinear partial dierential equations (11 (13 under the initial and boundary conditions (14 is solved using a semi-implicit inite dierence method. So we express them by inite-dierence scheme o Crank-Nicolson type, which converges aster and also stable unconditionally. The region o integration is considered as a rectangle as shown in ig..the inite dierence equations at every internal nodal point or a particular i-level constitute a tridiagonal system, which is solved by applying Thomas algorithm. Computations are carried out or all the time levels until the steady state is reached. The steady state solution is assumed to have been reached, when the absolute dierence between the values o U, as well as temperature T at two consecutive time steps are less than 10-5 at all grid points. The temperatures at two time levels are shown in the table 3 below. The steady state is reached at t = when the absolute dierence between temperatures is less than
8 Table 3 Comparison o temperatures at two dierent time levels Y Time T Time T t 0.05 T1-T E-05 1E-05 1E-05 1E Figure Discretization o domain 4. Stability and convergence o the inite dierence scheme The inite dierence equations corresponding to U and θ are as ollows: U U n1 n i, j i, j n Ui, j t U U U U n1 n1 n n i, j i1, j i, j i1, j X V n i, j U U U U n1 n1 n n i, j1 i, j1 i, j1 i, j1 4Y n1 n1 n1 n n n Ui, j1 U i, j Ui, j1 Ui, j1 U i, j U i, j1 E ( Y n1 n n1 n i, j i, j Ui, j U i, j E3 ME 4 (16 n1 n n1 n1 n n n1 n1 n n i, j i, j n i, j i 1, j i, j i1, j n i, j1 i, j1 i, j1 i, j1 U i, j V t X i, j 4Y n 1 n 1 n 1 n n n i, j 1 i, j n1 n i, j1 i, j1 i, j i, j1 R i, j i, j E1 E ( Y 5 Pr (17 The stability criterion o the scheme or constant mesh sizes is proved as ollows: The general ix iy term o the Fourier expansion or U, at time t = 0 are all e e apart rom a constant i 1. At a later time t, these terms will become 8
9 U t e e ( i X i Y ( i t e X e i Y (18 (19 Substituting U and in Eq. (0 and Eq. (1, regarding the coeicients U and V as constants over any one time step and denoting the values ater a time step by ', ': ix ' U ( ' (1 e V ( ' (i sin Y t X 4 Y ( ' (cos Y E Y E ME ( ' ( ' (0 ix ' U ( ' (1 e V ( ' (i sin Y t X 4 Y ( ' (cos Y 1 E 1 Y (1 Let (1 U t ix V t t M A (1 e ( isin Y E (cos Y 1 E t X Y Y 4 U t ix V t t R B (1 e ( isin Y E (cos Y 1 E t 1 X Y Y 5 Pr ( (3 Substituting A and B in Eq. (5 and Eq. (6, we have t (1 A ' (1 A E3 ( ' (4 (1 B ' (1 B (5 Eq. (4 and Eq. (5 can be written in the matrix orm as ollows: 1 A E3t ' 1 A (1 A(1 B ' 1 B 0 1 B (6 9
10 ' E Where η is a column vector o elements ψ and Φ. Now, or stability the modulus o each eigenvalue o the ampliication 1 Amatrix 1 BE should not exceed unity. The eigenvalues o E are: 1 A, 1 B Assume that U is everywhere positive and V is everywhere negative and let a U t X, b V t t, c d t Y Y, Substituting in Eq. (7, we have: X Y M A asin csin i( asinx bsin Y E4 d Since the real part o A is greater than or equal to zero, we have 1 A 1. Similarly, 1 B 1 1 A 1 B Hence the scheme is unconditionally stable which is also shown by Soundalgekar and Ganesan [7] or ordinary luids. The local truncation error is o( t X Y and it tends to zero as t, X and Y tend to zero. Hence the scheme is compatible. The stability and compatibility ensures the convergence o the inite dierence scheme. 5. Nusselt Number The local as well as average values o Nusselt number in dimensionless orm are as ollows: Nu X k n 1/4 XGr k Y Y 0 (7 k 1 n 1/4 Nu Gr dx k Y 0 Y 0 (8 The derivatives involved in Eqs. (7 - (8 are evaluated by using a ive-point approximation ormula and the integrals are evaluated by Newton-Cotes closed integration ormula 6. Results and discussion In order to get the physical insight into the low problem, numerical computations are carried out or various values o parameters that describe the low characteristics and the results are illustrated graphically. The dimensionless partial dierential equations together with the appropriate boundary conditions are solved by a semi- implicit inite-dierence method o Crank Nicolson type. The step size η = 0.05 is used to obtain the numerical solution. We consider our dierent types o nanoluids containing aluminium oxide (Al O 3, titanium oxide (TiO, copper (Cu and silver (Ag nanoparticles with water as a base luid. The nanoparticle volume raction is considered in the range o , as sedimentation takes place when the nanoparticle volume raction exceeds 8%. In this study, we 10
11 have considered spherical nanoparticles with thermal conductivity and dynamic viscosity shown in Model I in Table. The Prandtl number, Pr o the base luid is kept constant at 6.. The eects o nanoparticle volume raction, magnetic ield and radiation on the transient velocity and temperature proiles o the nanoluids are plotted. When φ = 0 this study reduces the governing equations to those o a regular luid. In order to veriy the accuracy o the numerical method, the present results are compared with those o Takhar et al. [6] in the literature and the comparisons are in excellent agreement as shown in ig. 3. Figure 3 Comparison o temperature proiles o Cu water nanoluid with Takhar et al. [6] Figure 4 Comparison o velocity proiles o cu water nanoluid or dierent values o M & R Fig. 4 depicts the velocity proiles o copper water nanoluid or dierent values o magnetic and radiation parameters. The velocity o the copper water nanoluid decreases with an increase in magnetic ield and radiation. The applied magnetic ield has the tendency to slow down the movement o the luid as a result o increased retarding orce. Hence, the presence o a magnetic ield decreases the momentum boundary layer thickness. This causes the velocity proiles o the nanoluid to have distinctive peaks near the immediate vicinity o the plate and as M increases these peaks decrease and move gradually downstream. In addition, this decrease in the low movement is also accompanied by an increase in the radiation parameter. Figure 5 Velocity proiles o Cu water nanoluid or dierent values o M and R Figure 6 Transient velocity proiles o silver water nanoluid 11
12 Fig. 5 illustrates the velocity proiles o copper water nanoluid or various values o the nanoparticle volume raction in simultaneous absence and presence o radiation and magnetic ields. It is observed that in the presence o radiation and magnetic ields, the velocity o the nanoluid increases with nanoparticle volume raction, whereas, the converse is true in the absence o radiation and magnetic ields. The above igure ig. 6 shows the velocity proiles o silver water nanoluid in the presence o radiation and magnetic ield with respect to time. It is observed that the velocity o the nanoluid increases with respect to time and a steady state is reached when t = 9.. The velocity o the nanoluid reaches a temporal maximum, which is observed at t = Figure 7 Velocity proiles o various nanoluids Figure 8 Transient temperature proiles o Cu water nanoluid or dierent values o M& R It is observed rom the ig. 8 that the temperature proiles o copper water nanoluid increases in the presence o both magnetic ield and radiation. Radiation increases the rate o energy transport to the luid and hence the thermal boundary layer thickness increases. The eect o a transverse magnetic ield on the luid give rise to a resistive type orce called the Lorentz orce. This orce has the tendency to slow down the motion o the luid to increase the temperature boundary layer. The presence o a magnetic ield increases the temperature inside the boundary layer as shown ig. 8. The steady state temperature proiles o copper water nanoluid with respect to the nanoparticle volume raction φ are shown in ig. 9. As the nanoparticle volume raction increases the temperature o the nanoluid decreases in the presence o radiation and magnetic parameter. This is possible physically because an increase in the nanoparticle volume raction leads to an increase in the thermal conductivity o the nanoluid and hence the thickness o the thermal boundary layer increases. The time taken to reach steady state decreases with an increase in nanoparticle volume raction φ. 1
13 Figure 9 Temperature proiles o Cu water nanoluid or dierent values o φ Figure 10 Transient temperature proiles o silver water nanoluid The temperature proiles o silver water nanoluid increases with time when R = 1 and M = 1. The temporal maximum or silver water nanoluid is observed at time t = 5.6 and steady state is reached at t = 9. as shown in ig. 10 Table 4 Local Nusselt number o various nanoluids in the presence o magnetic ield and radiation Pr=6., R=1, M=1, φ=0.04 X Ag Cu Al O TiO Computations o local Nusselt number Nu X or various nanoluids are shown in the tab. 3. The eects o thermal radiation and magnetic ield on a local Nusselt number o silver water nanoluid are depicted in ig. 11. It is observed that local Nusselt number increases with an increase in the thermal radiation parameter. The magnetic ield retards the heat transer process by decreasing the local Nusselt number. Enhancing magnetic ield tends to decrease the luid velocity and hence decrease the local Nusselt number. Fig. 1 illustrates that the average Nusselt number o copper water nanoluid decreases with an increase in the nanoparticle volume raction when R = 1 and M = 1. This concludes that changes in heat transer rates are associated with nanoparticle volume raction, which indicates the possible use o nanoluids in heat transer processes. 13
14 Figure 11 Local Nusselt number o silver water nanoluid or dierent values o R & M Figure 1 Average Nusselt number o copper water nanoluid Figure 13 Average Nusselt number o silver water nanoluid or dierent values o R & M Figure 14 Local skin-riction o Ag water nanoluid and water or dierent values o M and R From Fig.13 it is observed that the presence o a magnetic ield and radiation decreases the heat transer rates o nanoluids. Fig. 14 shows that an increase in radiation parameter increases the local skin riction in the absence o magnetic ield and in the presence o magnetic ield an increase in radiation decreases the local skin riction. It is also observed that an increase in the nanoparticle volume raction increases the local skin riction. Fig. 15 shows that an increase in the nanoparticle volume raction decreases the average skinriction in the presence o radiation and magnetic ield. This suggests that the presence o nanoparticles decreases the average skin-riction when the radiation and magnetic ields are present. Fig. 16 concludes that an increase in radiation and magnetic ield decreases the average skin-riction o silver water nanoluid. Thus the presence o the magnetic ield helps in reducing the rictional drag on the surace and an increase in the radiation parameter tends to reduce the velocity as shown in ig
15 Figure 15 Average Nusselt number o silver water nanoluid or dierent values o R & M Figure 16 Local skin-riction o Ag water nanoluid and water or dierent values o R and M 7. Conclusions In this paper, the problem o radiation eects on an unsteady MHD low o a nanoluid past a semi-ininite vertical plate is considered. The eects o radiation, magnetic parameter and a nanoparticle volume raction o the low and heat transer characteristics are determined or our kinds o nanoluids: aluminium oxide, copper, titanium oxide and silver. The dimensionless partial dierential equations with the appropriate boundary conditions are solved numerically by an implicit inite dierence method which is unconditionally stable and convergent. The conclusions o this study are as ollows: 1. In the presence o radiation and magnetic ield, an increase in nanoparticle volume raction φ decreases the nanoluid temperature, which leads to a decrease in the heat transer rates.. Increase in nanoparticle volume raction increases the dimensionless surace velocity o the luid in the presence o magnetic ield and radiation, which in turn decreases the average skinriction. 3. The presence o radiation and magnetic ield increases the temperature o the nanoluid with time. 4. The rate o heat transer at the plate decreases with an increase in the radiation and magnetic ield. 5. The velocity o the nanoluid decreases with an increase in the radiation and magnetic ield, whereas, the temperature o the nanoluid increases. 6. The presence o radiation and magnetic ield increases transient velocity and temperature proiles o nanoluid. They reach a steady state and temporal maximum is observed in each case. 7. The average Nusselt number is independent o time when it is large and decreases sharply or smaller values o t. 8. Time required reaching the steady state decreases with an increase in the nanoparticle volume raction. 9. Average skin-riction increases or smaller values o t. The unsteady MHD natural convective low o nanoluids past a semi-ininite vertical plate has immediate applications in all those processes which are highly aected by heat transer concept. 15
16 One o the technological applications o nanoparticles is the use o heat transer luids containing suspensions o nanoparticles to conront cooling problems in the thermal systems. Acknowledgment The authors wish to express their sincere thanks to the reviewers or their valuable comments and suggestions, which have led to deinite improvement in the paper. Reerences 1. Ostrach, S., An analysis o laminar ree-convection low and heat transer about a lat plate parallel to the direction o the generating body orce, NACA Report, 1111 (1953, pp Pohlhausen, E., Der Warmeaustausch zwichen esten korpen und Flussingkeiten mit kleiner Reibung und kleiner Warmeleitung, Z. Angew. Math. Mech., 1(191, pp Siegel, R. Transient ree convection rom a vertical lat plate. Transactions o American Society o Mech. Eng., 80 (1958, pp Gebhart, B., Pera, L., The nature o vertical natural convection lows resulting rom the combined buoyancy eects o thermal and mass diusion, Int. J. Heat Mass Trans., 14 (1971, 1, pp Hellums, J. D., Churchill, S.W., Transient and steady state, ree and natural convection, numerical solutions. Part 1. The isothermal vertical plate, American Institute o Chem. Engineers Journal, 8 (196, 5, pp Takhar, H. S., Ganesan, P., Ekambavanan, V., Soundalgekar, V. M., Transient ree convection past a semi-ininite vertical plate with variable surace temperature, Int. J. Numerical Methods or Heat and Fluid Flow, 7 (1996, 4, pp Soundalgekar, V.M., Ganesan, P., The inite dierence analysis o transient ree convection with mass transer o an isothermal vertical lat plate, Int. J. Engineering Sciences, 19 (1981, 6, pp England, W. G., Emery, A. F., Thermal radiation eects on the laminar ree convection boundary layer o an absorbing gas, J. Heat Trans., 91 (1969, 1, pp Soundalgekar, V. M., Takhar, H. S., Radiation Eects on Free Convection Flow past a Semi- Ininite Vertical Plate, Modelling, Measurement and Control, B51 (1993, pp Hossain, M. A., Takhar, H. S., Radiation eect on mixed convection along a vertical plate with uniorm surace temperature, J. Heat and Mass trans., 31 (1996, pp Das, U. N., Deka, R. K., Soundalgekar, V. M., Radiation eects on low past an impulsively started vertical ininite plate, J. Theoretical Mech., 1 (1996, pp Choi, S. U. S., Enhancing thermal conductivity o luids with nano- particles, ASME Fluids Engineering Division, 31 (1995, pp Buongiorno, J., Convective transport in nanoluids, J. Heat Trans., 18 (006, pp Kuznetsov, A. V., Nield, D. A., Natural convective boundary-layer low o a nanoluid past a vertical plate, Int. J. Therm. Sci., 49 (010,, pp
17 15. Nield, D. A., Kuznetsov, A. V., The Cheng-Minkowycz problem or natural convective boundary-layer low in a porous medium saturated by a nanoluid, Int. J. Heat and Mass Trans., 5 (009, 5-6, pp Khan, W. A., Pop, I., Boundary-layer low o a nanoluid past a stretching sheet, Int. J. Heat and Mass Trans., 53 (010, 11-1, pp HabibiMatin, M., Dehsara, M., Abbasi, A., Mixed convection MHD low o nanoluid over a nonlinear stretching sheet with eects o viscous dissipation and variable magnetic ield, MECHANIKA, 18 (01, 4, pp Hamad, M. A. A., Pop, I., Ismail, A. I. Md., Magnetic ield eects on ree convection low o a nanoluid past a vertical semi-ininite lat plate, Nonlinear Analysis.: Real World Applications, 1 (011, pp Chamkha, A. J., Aly, A. M., MHD ree convection low o a nanoluid past a vertical plate in the presence o heat generation or absorption eects, Chem. Eng. Comm., 198 (011, pp Dehsara, M., HabibiMatin, M., Dalir, N., Entropy analysis or MHD low over a non-linear stretching inclined transparent plate embedded in a porous medium due to solar radiation, MECHANIKA, 18 (01, 5, pp Ferdows, M., Shakhaoath Khan, M., Alam, M., Shuyu, S., MHD Mixed convective boundary layer low o a nanoluid through a porous medium due to an Exponentially Stretching sheet, Mathematical problems in Eng., 3 (01,7, pp Ahmed, S., Pop, I., Mixed convection boundary layer low rom a vertical lat plate embedded in a porous medium illed with nanoluids, Int. Comm. Heat and Mass Trans., 37 (010, 8, pp Hady, F. M., Ibrahim, F. S., Abdel-Gaied, S. M., Eid, Md. R., Radiation eect on viscous low o a nanoluid and heat transer over a nonlinearly stretching sheet, Nanoscale Res. Lett., 7 (01, pp Shakhaoath Khan, M., Alam, M., Ferdows, M., Eects o Magnetic ield on Radiative low o a Nanoluid past a Stretching Sheet, Procedia Engineering, 56 (013, pp Loganathan, P., Nirmal Chand, P., Ganesan, P., Radiation eects on an unsteady natural convective low o a nanoluid past an ininite vertical plate, NANO, 8(013, 1, pp Oztop, H. F., Abu - Nada, E., Numerical study o natural convection in partially heated rectangular enclosures illed with nanoluids, Int. J. Heat Fluid low, 9 (008, pp Tiwari, R. K., Das, M. K., Heat Transer Augmentation in a Two-Sided Lid-Driven Dierentially Heated Square Cavity Utilizing Nanoluids, Int. J. Heat and Mass Trans., 50 (007, 9-10, pp Schlichting, H., Gersten, K., Boundary layer theory, Springer-Verlag, New York, USA, Hamilton, R. L., Crosser, O. K., Thermal conductivity o Heterogeneous two component system, I&Ec. Fundamental,1 (196, pp Brewster, M. Q., Thermal Radiative Transer and Properties, Wiley, New York, USA, Smith, G.D., Numerical Solution o Partial Dierential Equations: Finite Dierence Methods by G.D. Smith, Oxord University press, USA,
2015 American Journal of Engineering Research (AJER)
American Journal o Engineering Research (AJER) 2015 American Journal o Engineering Research (AJER) e-issn: 2320-0847 p-issn : 2320-0936 Volume-4, Issue-7, pp-33-40.ajer.org Research Paper Open Access The
More informationRotating Flow of Magnetite-Water Nanofluid over a Stretching Surface Inspired By Non-Linear Thermal Radiation and Mass Transfer
International Journal o Mathematics Research. ISSN 0976-5840 Volume 9, Number (017), pp. 89-97 International Research Publication House http://www.irphouse.com Rotating Flow o Magnetite-Water Nanoluid
More informationBoundary-Layer Flow over a Porous Medium of a Nanofluid Past from a Vertical Cone
Boundary-Layer Flow over a Porous Medium o a Nanoluid Past rom a Vertical Cone Mohammad Mehdi Keshtkar 1 and jamaladin hadizadeh 2 1 Assistant Proessor, Department o Mechanical Engineering, 2 MSc. Student,
More informationIOSR Journal of Mathematics (IOSR-JM) e-issn: , p-issn: X.Volume12,Issue 1 Ver. III (Jan.-Feb.2016)PP
IOSR Journal o Mathematics (IOSR-JM) e-issn:78-578, p-issn: 39-765X.Volume,Issue Ver. III (Jan.-Feb.6)PP 88- www.iosrjournals.org Eect o Chemical Reaction on MHD Boundary Layer Flow o Williamson Nanoluid
More informationRadiation Effects on MHD Free Convective Heat and Mass Transfer Flow Past a Vertical Porous Flat Plate with Suction
International Journal o Science, Engineering and Technology Research (IJSETR), Volume 3, Issue 5, May 4 Radiation Eects on MHD Free Convective Heat and Mass Transer Flow Past a Vertical Porous Flat Plate
More informationBuoyancy Driven Heat Transfer of Water-Based CuO Nanofluids in a Tilted Enclosure with a Heat Conducting Solid Cylinder on its Center
July 4-6 2012 London U.K. Buoyancy Driven Heat Transer o Water-Based CuO Nanoluids in a Tilted Enclosure with a Heat Conducting Solid Cylinder on its Center Ahmet Cihan Kamil Kahveci and Çiğdem Susantez
More informationInternational ejournals
Available online at www.internationalejournals.com ISSN 0976 1411 International ejournals International ejournal of Mathematics and Engineering 30 (013) 4 55 RADIATION EFFECTS ON UNSTEADY FLOW PAST AN
More informationCOMBINED EFFECTS OF RADIATION AND JOULE HEATING WITH VISCOUS DISSIPATION ON MAGNETOHYDRODYNAMIC FREE CONVECTION FLOW AROUND A SPHERE
Suranaree J. Sci. Technol. Vol. 20 No. 4; October - December 2013 257 COMBINED EFFECTS OF RADIATION AND JOULE HEATING WITH VISCOUS DISSIPATION ON MAGNETOHYDRODYNAMIC FREE CONVECTION FLOW AROUND A SPHERE
More informationFree convection in a porous cavity filled with nanofluids
Free convection in a porous cavity illed with nanoluids GROSAN TEODOR, REVNIC CORNELIA, POP IOAN Faculty o Mathematics and Computer Sciences Babes-Bolyai University Cluj-Napoca ROMANIA tgrosan@math.ubbcluj.ro,
More informationEffect of Radiation on Dusty Viscous Fluid through Porous Medium overa Moving Infinite Vertical Plate with Heat Source
International Archive of Applied Sciences and Technology Int. Arch. App. Sci. Technol; Vol 4 [4]Decemebr 3: - 3 Society of Education, India [ISO9: 8 Certified Organization] www.soeagra.com/iaast.html CODEN:
More informationBOUNDARY LAYER ANALYSIS ALONG A STRETCHING WEDGE SURFACE WITH MAGNETIC FIELD IN A NANOFLUID
Proceedings o the International Conerence on Mechanical Engineering and Reneable Energy 7 (ICMERE7) 8 December, 7, Chittagong, Bangladesh ICMERE7-PI- BOUNDARY LAYER ANALYSIS ALONG A STRETCHING WEDGE SURFACE
More informationEFFECTS OF CHEMICAL REACTION ON MHD BOUNDARY LAYER FLOW OVER AN EXPONENTIALLY STRETCHING SHEET WITH JOULE HEATING AND THERMAL RADIATION
International Research Journal o Engineering and Technology (IRJET) e-issn: 395-56 Volume: Issue: 9 Dec-5.irjet.net p-issn: 395-7 EFFECTS OF CHEMICAL REACTION ON MHD BOUNDARY LAYER FLOW OVER AN EXPONENTIALLY
More informationMechanical Engineering Research Journal BUOYANT FLOW OF NANOFLUID FOR HEAT-MASS TRANSFER THROUGH A THIN LAYER
Dept. o Mech. Eng. CUET Published Online March 2015 (http://www.cuet.ac.bd/merj/index.html) Mechanical Engineering Research Journal Vol. 9, pp. 712, 2013 M E R J ISSN: 1990-5491 BUOYANT FLOW OF NANOFLUID
More informationNON-SIMILAR SOLUTIONS FOR NATURAL CONVECTION FROM A MOVING VERTICAL PLATE WITH A CONVECTIVE THERMAL BOUNDARY CONDITION
NON-SIMILAR SOLUTIONS FOR NATURAL CONVECTION FROM A MOVING VERTICAL PLATE WITH A CONVECTIVE THERMAL BOUNDARY CONDITION by Asterios Pantokratoras School o Engineering, Democritus University o Thrace, 67100
More informationSecond Order Slip Flow of Cu-Water Nanofluid Over a Stretching Sheet With Heat Transfer
Second Order Slip Flow o Cu-Water Nanoluid Over a Stretching Sheet With Heat Transer RAJESH SHARMA AND ANUAR ISHAK School o Mathematical Sciences, Faculty o Science and Technology Universiti Kebangsaan
More informationControlling the Heat Flux Distribution by Changing the Thickness of Heated Wall
J. Basic. Appl. Sci. Res., 2(7)7270-7275, 2012 2012, TextRoad Publication ISSN 2090-4304 Journal o Basic and Applied Scientiic Research www.textroad.com Controlling the Heat Flux Distribution by Changing
More informationAdv. Theor. Appl. Mech., Vol. 7, 2014, no. 1, 1-20 HIKARI Ltd,
Adv. Theor. Appl. Mech., Vol. 7, 2014, no. 1, 1-20 HIKARI Ltd, www.m-hikari.com http://dx.doi.org/10.12988/atam.2014.31124 Magneto-Hydrodynamic Eect with Temperature Dependent Viscosity on Natural Convection
More informationFree convection on an inclined plate with variable viscosity and thermal diffusivity
Free convection on an inclined plate with variable viscosity and thermal diffusivity G. Palani 1, J.D. Kirubavathi 1, and Kwang Yong Kim 2 1 Dr. Ambedkar Govt. Arts College, Chennai, Tamil Nadu, India
More informationCOMBINED EFFECTS OF RADIATION AND HEAT GENERATION ON MHD NATURAL CONVECTION FLOW ALONG A VERTICAL FLAT PLATE IN PRESENCE OF HEAT CONDUCTION
BRAC University Journal, vol.vi, no., 9, pp 11- COMBINED EFFECTS OF RADIATION AND HEAT GENERATION ON MHD NATURAL CONVECTION FLOW ALONG A VERTICAL FLAT PLATE IN PRESENCE OF HEAT CONDUCTION Mohammad Mokaddes
More informationEffect of Thermal Dispersion and Thermal Radiation on Boundary Payer Flow of Mhd Nanofluid With Variable Suction
IOSR Journal o Mathematics (IOSR-JM) e-issn: 78-578, p-issn: 39-765X. Volume, Issue 6 Ver. III (Nov. - Dec.6), PP 3-3 www.iosrjournals.org Eect o Thermal Dispersion and Thermal Radiation on Boundary Payer
More informationEffects of Radiation on Free Convection Flow past an Upward Facing Horizontal Plate in a Nanofluid in the Presence of Internal Heat Generation
Effects of Radiation on Free Convection Flow past an Upward Facing Horizontal Plate in a Nanofluid in the Presence of Internal Heat Generation M.B.K.MOORTHY Department of Mathematics Institute of Road
More informationRadiation and Heat Absorption Effects on Unsteady MHD Flow Through Porous Medium in The Presence of Chemical Reaction of First Order
ISBN 978-93-5156-38-0 International Conference of Advance Research and Innovation (-014) Radiation and Heat Absorption Effects on Unsteady MHD Flow Through Porous Medium in The Presence of Chemical Reaction
More informationAvailable online at ScienceDirect. Procedia Engineering 105 (2015 )
Available online at www.sciencedirect.com ScienceDirect Procedia Engineering 105 (2015 ) 388 397 6th BSME International Conerence on Thermal Engineering (ICTE 2014) Eect o tilt angle on pure mixed convection
More informationBIOCONVECTION HEAT TRANSFER OF A NANOFLUID OVER A STRETCHING SHEET WITH VELOCITY SLIP AND TEMPERATURE JUMP
THERMAL SCIENCE: Year 017, Vol. 1, No. 6A, pp. 47-56 47 BIOCONVECTION HEAT TRANSFER OF A NANOFLUID OVER A STRETCHING SHEET WITH VELOCITY SLIP AND TEMPERATURE JUMP by Bingyu SHEN a, Liancun ZHENG a*, Chaoli
More informationUnsteady Laminar Free Convection from a Vertical Cone with Uniform Surface Heat Flux
Nonlinear Analysis: Modelling and Control, 2008, Vol. 13, No. 1, 47 60 Unsteady Laminar Free Convection from a Vertical Cone with Uniform Surface Heat Flux Bapuji Pullepu 1, K. Ekambavanan 1, A. J. Chamkha
More informationComments on Magnetohydrodynamic Unsteady Flow of A Non- Newtonian Fluid Through A Porous Medium
Comments on Magnetohydrodynamic Unsteady Flow o A Non- Newtonian Fluid Through A Porous Medium Mostaa A.A.Mahmoud Department o Mathematics, Faculty o Science, Benha University (358), Egypt Abstract The
More informationEFFECTS OF VISCOUS DISSIPATION ON FREE CONVECTION BOUNDARY LAYER FLOW TOWARDS A HORIZONTAL CIRCULAR CYLINDER
EFFECTS OF VISCOUS DISSIPATION ON FREE CONVECTION BOUNDARY LAYER FLOW TOWARDS A HORIZONTAL CIRCULAR CYLINDER Muhammad Khairul Anuar Mohamed 1, Norhaizah Md Sari 1, Abdul Rahman Mohd Kasim 1, Nor Aida Zuraimi
More informationCONVECTIVE HEAT TRANSFER CHARACTERISTICS OF NANOFLUIDS. Convective heat transfer analysis of nanofluid flowing inside a
Chapter 4 CONVECTIVE HEAT TRANSFER CHARACTERISTICS OF NANOFLUIDS Convective heat transer analysis o nanoluid lowing inside a straight tube o circular cross-section under laminar and turbulent conditions
More informationNumerical Solutions of Unsteady Laminar Free Convection from a Vertical Cone with Non-Uniform Surface Heat Flux
Journal of Applied Fluid Mechanics, Vol. 6, No. 3, pp. 357-367, 213. Available online at www.jafmonline.net, ISSN 1735-3572, EISSN 1735-3645. Numerical Solutions of Unsteady aminar Free Convection from
More informationEntropy 2011, 13, ; doi: /e OPEN ACCESS
Entropy 011, 13, 1446-1464; doi:10.3390/e13081446 OPEN ACCESS entropy ISSN 1099-4300 www.mdpi.com/journal/entropy Article Second Law Analysis or Variable Viscosity Hydromagnetic Boundary Layer Flow with
More informationHeat source/sink and thermal conductivity effects on micropolar nanofluid flow over a MHD radiative stretching surface
Heat source/sink and thermal conductivity effects on micropolar nanofluid flow over a MHD radiative stretching surface Srinivas Maripala 1 and Kishan Naikoti 2 1Department of mathematics, Sreenidhi Institute
More informationChapter Introduction
Chapter 4 Mixed Convection MHD Flow and Heat Transfer of Nanofluid over an Exponentially Stretching Sheet with Effects of Thermal Radiation and Viscous Dissipation 4.1 Introduction The study of boundary
More informationMAGNETOHYDRODYNAMIC GO-WATER NANOFLUID FLOW AND HEAT TRANSFER BETWEEN TWO PARALLEL MOVING DISKS
THERMAL SCIENCE: Year 8, Vol., No. B, pp. 383-39 383 MAGNETOHYDRODYNAMIC GO-WATER NANOFLUID FLOW AND HEAT TRANSFER BETWEEN TWO PARALLEL MOVING DISKS Introduction by Mohammadreza AZIMI and Rouzbeh RIAZI
More informationUNSTEADY MHD FREE CONVECTIVE FLOW PAST A MOVING VERTICAL PLATE IN PRESENCE OF HEAT SINK
Journal of Rajasthan Academy of Physical Sciences ISSN : 097-6306; URL : http:raops.org.in Vol.16, No.1&, March-June, 017, 1-39 UNSTEADY MHD FREE CONVECTIVE FLOW PAST A MOVING VERTICAL PLATE IN PRESENCE
More informationEFFECTS OF RADIATION ON CONVECTION HEAT TRANSFER OF Cu-WATER NANOFLUID PAST A MOVING WEDGE
THERMAL SCIENCE, Year 016, Vol. 0, No., pp. 437-447 437 EFFECTS OF RADIATION ON CONVECTION HEAT TRANSFER OF Cu-WATER NANOFLUID PAST A MOVING WEDGE by Faiza A. SALAMA a,b * a Department of Mathematics,
More informationLaplace Technique on Magnetohydrodynamic Radiating and Chemically Reacting Fluid over an Infinite Vertical Surface
International Journal of Engineering and Technology Volume 2 No. 4, April, 2012 Laplace Technique on Magnetohydrodynamic Radiating and Chemically Reacting Fluid over an Infinite Vertical Surface 1 Sahin
More informationAnalysis of Non-Thermal Equilibrium in Porous Media
Analysis o Non-Thermal Equilibrium in Porous Media A. Nouri-Borujerdi, M. Nazari 1 School o Mechanical Engineering, Shari University o Technology P.O Box 11365-9567, Tehran, Iran E-mail: anouri@shari.edu
More informationFREE CONVECTION OF HEAT TRANSFER IN FLOW PAST A SEMI-INFINITE FLAT PLATE IN TRANSVERSE MAGNETIC FIELD WITH HEAT FLUX
American Journal of Applied Sciences 11 (9): 148-1485, 14 ISSN: 1546-939 14 P. Geetha et al., This open access article is distributed under a Creative Commons Attribution (CC-BY) 3. license doi:1.3844/ajassp.14.148.1485
More informationJoule Heating Effect on the Coupling of Conduction with Magnetohydrodynamic Free Convection Flow from a Vertical Flat Plate
Nonlinear Analysis: Modelling and Control, 27, Vol. 12, No. 3, 37 316 Joule Heating Effect on the Coupling of Conduction with Magnetohydrodynamic Free Convection Flow from a Vertical Flat Plate M. A. Alim
More informationDufour and Soret effects on unsteady free convective flow past a semi infinite vertical plate with variable viscosity and thermal conductivity
Dufour and Soret effects on unsteady free convective flow past a semi infinite vertical plate with variable viscosity and thermal conductivity P. Loganathan, D. Iranian, P. Ganesan 3, 3 Department of Mathematics,
More informationSteady MHD Natural Convection Flow with Variable Electrical Conductivity and Heat Generation along an Isothermal Vertical Plate
Tamkang Journal of Science and Engineering, Vol. 13, No. 3, pp. 235242 (2010) 235 Steady MHD Natural Convection Flow with Variable Electrical Conductivity and Heat Generation along an Isothermal Vertical
More informationAvailable online at ScienceDirect. Procedia Engineering 127 (2015 )
Available online at www.sciencedirect.com ScienceDirect Procedia Engineering 27 (25 ) 42 49 International Conference on Computational Heat and Mass Transfer-25 Finite Element Analysis of MHD viscoelastic
More informationMHD Flow of Nanofluids over an Exponentially Stretching Sheet Embedded in a Stratified Medium with Suction and Radiation Effects
Journal o Applied Fluid Mechanics, Vol. 8, No. 1, pp. 85-93, 215. Available online at.jamonline.net, ISSN 1735-3572, EISSN 1735-3645. MHD Flo o Nanoluids over an Exponentially Stretching Sheet Embedded
More informationConceptual Study of the Effect of Radiation on Free Convective Flow of Mass and Heat Transfer over a Vertical Plate
Applied Mathematics 014, 4(): 56-63 DOI: 10.593/j.am.014040.03 Conceptual Study of the Effect of Radiation on Free Convective Flow of Mass and Heat Transfer over a Vertical Plate Abah Sunday Ojima 1,*,
More informationFutures and Trends Research Group, Faculty of Industrial Science & Technology, Universiti Malaysia Pahang, UMP Kuantan, Pahang, Malaysia
Effect of adiation on Magnetohydrodynamic Free Convection Boundary Layer Flow Near The Lower Stagnation Point of A Solid Sphere with Newtonian Heating EFFECT OF ADIATION ON MAGNETOHYDODYNAMIC FEE CONVECTION
More informationKabita Nath Department of Mathematics Dibrugarh University Dibrugarh, Assam, India
Influence of Chemical Reaction, Heat Source, Soret and Dufour Effects on Separation of a Binary Fluid Mixture in MHD Natural Convection Flow in Porous Media B.R.Sharma Department of Mathematics Dibrugarh
More informationMHD Natural Convection and Entropy Generation of Variable Properties Nanofluid in a Triangular Enclosure
Trans. Phenom. Nano Micro cales, 3(1): 37-45, Winter - pring 15 DOI: 1.758/tpnms.15.1.4 ORIGINAL REEARCH PAPER. MHD Natural Convection and Entropy Generation o Variable Properties Nanoluid in a Triangular
More informationFlow and Heat Transfer Analysis of Copper-water Nanofluid with Temperature Dependent Viscosity Past a Riga Plate
Journal o Magnetics (), 181-187 (017) ISSN (Print) 16-1750 ISSN (Online) 33-6656 https://doi.org/10.483/jmag.017...181 Flo and Heat Transer Analysis o Copper-ater Nanoluid ith Temperature Dependent Viscosity
More informationA new approach for local similarity solutions of an unsteady hydromagnetic free convective heat transfer flow along a permeable flat surface
International Journal of Advances in Applied Mathematics and Mechanics Volume, Issue : (3) pp. 39-5 Available online at www.ijaamm.com IJAAMM ISSN: 347-59 A new approach for local similarity solutions
More informationInfluence of chemical reaction and thermal radiation effects on MHD boundary layer flow over a moving vertical porous plate
International Research Journal of Engineering and Technology (IRJET) e-issn: 2395-56 Volume: 2 Issue: 7 Oct-25 www.irjet.net p-issn: 2395-72 Influence of chemical reaction and thermal radiation effects
More informationijpam.eu Effects of thermal radiation on an unsteady nanofluid flow past over an vertical plate
Inter national Journal of Pure and Applied Mathematics Volume 113 No. 9 2017, 38 46 ISSN: 1311-8080 (printed version); ISSN: 1314-3395 (on-line version) url: http://www.ijpam.eu ijpam.eu Effects of thermal
More informationUnsteady Magnetohydrodynamic Free Convective Flow Past a Vertical Porous Plate
International Journal of Applied Science and Engineering 2013. 11, 3: 267-275 Unsteady Magnetohydrodynamic Free Convective Flow Past a Vertical Porous Plate Murali Gundagania,*, Sivaiah Sheria, Ajit Paulb,
More informationDissipation, MHD and Radiation Effects on an Unsteady Convective Heat and Mass Transfer in a Darcy-Forcheimer Porous Medium
Dissipation, MHD and Radiation Effects on an Unsteady Convective Heat and Mass Transfer in a Darcy-Forcheimer Porous Medium Moses S. Dada (Corresponding author) Department of Mathematics, University of
More informationVOL. 5, NO. 5, May 2015 ISSN ARPN Journal of Science and Technology All rights reserved.
ARPN Journal o Science and Technology 011-015. All rights reserved. http://.ejournaloscience.org Impact o Heat Transer on MHD Boundary Layer o Copper Nanoluid at a Stagnation Point Flo Past a Porous Stretching
More informationAvailable online at ScienceDirect. Procedia Engineering 127 (2015 )
Available online at www.sciencedirect.com ScienceDirect Procedia Engineering 17 (015 ) 106 1033 International Conerence on Computational Heat and Mass Transer-015 MHD Flow o a Nanoluid Embedded with Dust
More informationIJRET: International Journal of Research in Engineering and Technology eissn: pissn:
IJRET: International Journal o Research in Engineering and Technology eissn: 39-63 pissn: 3-738 NUMERICAL SIMULATION OF HEAT TRANSFER CHARACTERISTICS IN THIN FILM FLOW OF MHD DISSIPATIVE CARREAU NANOFLUID
More informationRadiation Effects on Mixed Convection Flow and Viscous Heating in a Vertical Channel Partially Filled with a Porous Medium
Tamkang Journal of Science and Engineering, Vol. 14, No. 2, pp. 97 106 (2011) 97 Radiation Effects on Mixed Convection Flow and Viscous Heating in a Vertical Channel Partially Filled with a Porous Medium
More informationNUMERICAL SOLUTION OF MHD FLOW OVER A MOVING VERTICAL POROUS PLATE WITH HEAT AND MASS TRANSFER
Int. J. Chem. Sci.: 1(4), 14, 1487-1499 ISSN 97-768X www.sadgurupublications.com NUMERICAL SOLUTION OF MHD FLOW OVER A MOVING VERTICAL POROUS PLATE WITH HEAT AND MASS TRANSFER R. LAKSHMI a, K. JAYARAMI
More informationMHD FLOW PAST AN IMPULSIVELY STARTED INFINITE VERTICAL PLATE IN PRESENCE OF THERMAL RADIATION
FLUID DYNAMICS MHD FLOW PAST AN IMPULSIVELY STARTED INFINITE VERTICAL PLATE IN PRESENCE OF THERMAL RADIATION M. K. MAZUMDAR, R. K. DEKA Department of Mathematics, Gauhati University Guwahat-781 014, Assam,
More informationPERFORMANCE OF NANOFLUID IN FREE CONVECTIVE HEAT TRANSFER INSIDE A CAVITY WITH NON-ISOTHERMAL BOUNDARY CONDITIONS
Proceedings o the International Conerence on Mechanical Engineering and Renewable Energy 2015 (ICMERE2015) 26 29 November, 2015, Chittagong, Bangladesh ICMERE2015-PI-058 PERFORMANCE OF NANOFUID IN FREE
More informationAmerican Journal of Modern Energy
American Journal o Modern Energy 2015; 1(1): 1-16 Published online June 15, 2015 (http://www.sciencepublishinggroup.com/j/ajme) doi: 10.11648/j.ajme.20150101.11 Heat Generation/Absorption Eect on Natural
More informationNUMERICAL STUDY OF MIXED CONVECTION HEAT TRANSFER IN LID-DRIVEN CAVITY UTILIZING NANOFLUID: EFFECT OF TYPE AND MODEL OF NANOFLUID
NUMERICAL STUDY OF MIXED CONVECTION HEAT TRANSFER IN LID-DRIVEN CAVITY UTILIZING NANOFLUID: EFFECT OF TYPE AND MODEL OF NANOFLUID by Nader POURMAHMOUD 1,a, Ashkan GHAFOURI 1,b,*, Iraj MIRZAEE 1,c 1 Department
More informationEffects of variable viscosity and nonlinear radiation on MHD flow with heat transfer over a surface stretching with a power-law velocity
Available online at www.pelagiaresearchlibrary.com Advances in Applied Science Research, 01, 3 (1):319-334 ISSN: 0976-8610 CODEN (USA): AASRFC Effects of variable viscosity and nonlinear radiation on MHD
More informationMHD Flow and Heat Transfer over an. Exponentially Stretching Sheet with Viscous. Dissipation and Radiation Effects
Applied Mathematical Sciences, Vol. 7, 3, no. 4, 67-8 MHD Flow and Heat Transfer over an Exponentially Stretching Sheet with Viscous Dissipation and Radiation Effects R. N. Jat and Gopi Chand Department
More informationKeywords: Finite element method; Nanofluid; Inclined magnetic field; Natural convection; Square enclosure; Brownian motion
Columbia International Publishing American Journal o Heat and Mass Transer doi:10.7726/ajhmt.2016.1012 Research Article Finite Element Analysis o Unsteady Natural Convective Heat Transer and Fluid Flow
More informationInvestigation of two phase unsteady nanofluid flow and heat transfer between moving parallel plates in the presence of the magnetic field using GM
rans. Phenom. Nano Micro Scales, 4(): -8, Winter - Spring 06 DOI: 0.708/tpnms.06.0.007 ORIGINAL RESEARCH PAPER Investigation o two phase unsteady nanoluid low and heat transer between moving parallel plates
More informationFORCED CONVECTION BOUNDARY LAYER MAGNETOHYDRODYNAMIC FLOW OF NANOFLUID OVER A PERMEABLE STRETCHING PLATE WITH VISCOUS DISSIPATION
S587 FORCED CONVECTION BOUNDARY LAYER MAGNETOHYDRODYNAMIC FLOW OF NANOFLUID OVER A PERMEABLE STRETCHING PLATE WITH VISCOUS DISSIPATION by Meisam HABIBI MATIN a,b and Pouyan JAHANGIRI c * a Department of
More informationConstantine, Algeria. Received Accepted Keywords: Copper nanoparticles; heat transfer; circular cylinder; steady regime.
Metallurgical and Materials Engineering Association o Metallurgical Engineers o Serbia AMES Scientiic paper UDC: 669.245 NUMERICAL INVESTIGATION OF FLUID FLOW AND HEAT TRANSFER AROUND A CIRCULAR CYLINDER
More informationNumerical Study on Unsteady Free Convection and Mass Transfer Flow past a Vertical Porous Plate
Numerical Study on Unsteady Free Convection and Mass Transfer Flow past a Vertical Porous Plate S. F. Ahmmed Mathematics Discipline Khulna University, Bangladesh.. R. Ahmed Mathematics Discipline Khulna
More informationThe effects of suction and injection on a moving flat plate in a parallel stream with prescribed surface heat flux
Noriah Bachok Anuar Ishak The eects o suction inection on a moving lat plate in a parallel stream ith prescribed surace heat lux NORFIFAH BACHOK & ANUAR ISHAK Department o Mathematics Faculty o Science
More informationReceived September 24, 2012; revised October 25, 2012; accepted November 14, 2012
Open Journal o Fluid Dynamics,,, -9 http://dx.doi.org/36/ojd..4 Published Online December (http://www.scirp.org/journal/ojd) Eects o Thermophoresis on Unsteady MHD Free Convective Heat and Mass Transer
More informationRadiative Mhd Stagnation Point Flow Over A Chemical Reacting Porous Stretching Surface With Convective Thermal Boundary Condition
INTERNATIONAL JOURNAL OF SCIENTIFIC & TECHNOLOGY RESEARCH VOLUME 3, ISSUE 1, DECEMBER 014 ISSN 77-8616 Radiative Mhd Stagnation Point Flow Over A Chemical Reacting Porous Stretching Surface With Convective
More informationMHD Free Convective Heat and Mass Transfer of a Chemically-Reacting Fluid from Radiate Stretching Surface Embedded in a Saturated Porous Medium
INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING Volume 9 011 Article A66 MHD Free Convective Heat and Mass Transfer of a Chemically-Reacting Fluid from Radiate Stretching Surface Embedded in a Saturated
More informationAnalysis of Natural Convection Flow in a Trapezoidal Cavity Containing a Rectangular Heated Body in Presence of External Oriented Magnetic Field
Publications Available Online J. Sci. Res. 10 (1), 11-23 (2018) JOURNAL OF SCIENTIFIC RESEARCH www.banglajol.info/index.php/jsr Analysis of Natural Convection Flow in a Trapezoidal Cavity Containing a
More informationNonlinear Analysis: Modelling and Control, 2008, Vol. 13, No. 4,
Nonlinear Analysis: Modelling and Control, 2008, Vol. 13, No. 4, 513 524 Effects of Temperature Dependent Thermal Conductivity on Magnetohydrodynamic (MHD) Free Convection Flow along a Vertical Flat Plate
More informationFinite element analysis of natural convective heat transfer in a porous square cavity filled with nanofluids in the presence of thermal radiation
Journal of Physics: Conference Series PAPER OPEN ACCESS Finite element analysis of natural convective heat transfer in a porous square cavity filled with nanofluids in the presence of thermal radiation
More informationRiyadh 11451, Saudi Arabia. ( a b,c Abstract
Effects of internal heat generation, thermal radiation, and buoyancy force on boundary layer over a vertical plate with a convective boundary condition a Olanrewaju, P. O., a Gbadeyan, J.A. and b,c Hayat
More informationTHE UNSTEADY FREE CONVECTION FLOW OF ROTATING MHD SECOND GRADE FLUID IN POROUS MEDIUM WITH EFFECT OF RAMPED WALL TEMPERATURE
THE UNSTEADY FREE CONVECTION FLOW OF ROTATING MHD SECOND GRADE FLUID IN POROUS MEDIUM WITH EFFECT OF RAMPED WALL TEMPERATURE 1 AHMAD QUSHAIRI MOHAMAD, ILYAS KHAN, 3 ZULKHIBRI ISMAIL AND 4* SHARIDAN SHAFIE
More informationEffect of Variable Viscosity on Convective Heat and Mass Transfer by Natural Convection from Vertical Surface in Porous Medium
Effect of Variable Viscosity on Convective Heat and Mass Transfer by Natural Convection from Vertical Surface in Porous Medium M.B.K.MOORTHY, K.SENTHILVADIVU Department of Mathematics, Institute of Road
More informationRadiation Effects on Free Convection MHD Couette Flow Started Exponentially with Variable Wall Temperature in Presence of Heat Generation
Open Journal of Fluid Dynamics,,, 4-7 http://dx.doi.org/.436/ojfd.. Published Online March (http://www.scirp.org/journal/ojfd) Radiation Effects on Free Convection MHD Couette Flow Started Exponentially
More informationMHD effects on micropolar nanofluid flow over a radiative stretching surface with thermal conductivity
Available online at wwwpelagiaresearchlibrarycom Advances in Applied Science Research, 26, 7(3):73-82 ISSN: 976-86 CODEN (USA): AASRFC MHD effects on micropolar nanofluid flow over a radiative stretching
More informationG. C. Hazarika 2 Department of Mathematics Dibrugarh University, Dibrugarh
Effects of Variable Viscosity and Thermal Conductivity on Heat and Mass Transfer Flow of Micropolar Fluid along a Vertical Plate in Presence of Magnetic Field Parash Moni Thakur 1 Department of Mathematics
More informationNATURAL CONVECTIVE BOUNDARY LAYER FLOW OVER A HORIZONTAL PLATE EMBEDDED
International Journal of Microscale and Nanoscale Thermal.... ISSN: 1949-4955 Volume 2, Number 3 2011 Nova Science Publishers, Inc. NATURAL CONVECTIVE BOUNDARY LAYER FLOW OVER A HORIZONTAL PLATE EMBEDDED
More informationInternational Journal of Pure and Applied Mathematics
Volume 117 No. 11 2017, 317-325 ISSN: 1311-8080 (printed version); ISSN: 1314-3395 (on-line version) url: http://www.ijpam.eu ijpam.eu MHD Flow of a Nanofluid and Heat transfer over an Exponentially Shrinking
More informationUNSTEADY FREE CONVECTION BOUNDARY-LAYER FLOW PAST AN IMPULSIVELY STARTED VERTICAL SURFACE WITH NEWTONIAN HEATING
FLUID DYNAMICS UNSTEADY FREE CONVECTION BOUNDARY-LAYER FLOW PAST AN IMPULSIVELY STARTED VERTICAL SURFACE WITH NEWTONIAN HEATING R. C. CHAUDHARY, PREETI JAIN Department of Mathematics, University of Rajasthan
More informationComputers and Mathematics with Applications
Computers and Mathematics with Applications 59 (2010) 3867 3878 Contents lists available at ScienceDirect Computers and Mathematics with Applications journal homepage: www.elsevier.com/locate/camwa Double-diffusive
More informationFREE CONVECTION AROUND A SLENDER PARABOLOID OF NON- NEWTONIAN FLUID IN A POROUS MEDIUM
FREE CONVECTION AROUND A SLENDER PARABOLOID OF NON- NEWTONIAN FLUID IN A POROUS MEDIUM Rishi Raj KAIRI, Department of Mathematics, Islampur College, Uttar Dinajpur, West Bengal, India. Email: rishirajkairi@gmail.com
More informationNUMERICAL STUDY ON THE EFFECT OF INCLINATION ANGLE ON HEAT TRANSFER PERFORMANCE IN BACK-WARD FACING STEP UTILIZING NANOFLUID
NUMERICAL STUDY ON THE EFFECT OF INCLINATION ANGLE ON HEAT TRANSFER PERFORMANCE IN BACK-WARD FACING STEP UTILIZING NANOFLUID Saleh Etaig*, Etaig.Mahmoud@Northumbria.ac.uk Reaz Hasan, Reaz.Hasan@Northumria.ac.uk
More informationA new numerical approach for Soret effect on mixed convective boundary layer flow of a nanofluid over vertical frustum of a cone
Inter national Journal of Pure and Applied Mathematics Volume 113 No. 8 2017, 73 81 ISSN: 1311-8080 printed version); ISSN: 1314-3395 on-line version) url: http://www.ijpam.eu ijpam.eu A new numerical
More informationPressure Effects on Unsteady Free Convection. and Heat Transfer Flow of an Incompressible. Fluid Past a Semi-Infinite Inclined Plate with
Applied Mathematical Sciences, Vol. 6,, no. 68, 47-65 Pressure Effects on Unsteady Free Convection and Heat Transfer Flow of an Incompressible Fluid Past a Semi-Infinite Inclined Plate with Impulsive and
More informationFinite Difference Solution of Unsteady Free Convection Heat and Mass Transfer Flow past a Vertical Plate
Daffodil International University Institutional Repository DIU Journal of Science and Technology Volume 1, Issue 1, January 17 17-1 Finite Difference Solution of Unsteady Free Convection Heat and Mass
More informationFALLING FILM FLOW ALONG VERTICAL PLATE WITH TEMPERATURE DEPENDENT PROPERTIES
Proceedings of the International Conference on Mechanical Engineering 2 (ICME2) 8-2 December 2, Dhaka, Bangladesh ICME-TH-6 FALLING FILM FLOW ALONG VERTICAL PLATE WITH TEMPERATURE DEPENDENT PROPERTIES
More informationEffects of Suction and Internal Heat Generation on Hydromagnetic Mixed Convective Nanofluid Flow over an Inclined Stretching Plate
Available online www.ejaet.com European Journal of Advances in Engineering and Technology, 5, (3): 5-58 Research Article ISSN: 394-658X Effects of Suction and Internal Heat Generation on Hydromagnetic
More informationInfluence of the Order of Chemical Reaction and Soret Effect on Mass Transfer of a Binary Fluid Mixture in Porous Media
Influence of the Order of Chemical Reaction and Soret Effect on Mass Transfer of a Binary Fluid Mixture in Porous Media B.R.Sharma, Debozani Borgohain Department of Mathematics, Dibrugarh University, Dibrugarh-786004,
More informationNumerical Study of Steady MHD Plane Poiseuille Flow and Heat Transfer in an Inclined Channel
Numerical Study of Steady MHD Plane Poiseuille Flow and Heat Transfer in an Inclined Channel Muhim Chutia Department of Mathematics, Mariani College, Assam-785634, India ABSTRACT: In this paper, a numerical
More informationMHD Flow Past an Impulsively Started Vertical Plate with Variable Temperature and Mass Diffusion
Applied Mathematical Sciences, Vol. 5, 2011, no. 3, 149-157 MHD Flow Past an Impulsively Started Vertical Plate with Variable Temperature and Mass Diffusion U. S. Rajput and Surendra Kumar Department of
More informationA Semi-Analytical Solution for a Porous Channel Flow of a Non-Newtonian Fluid
Journal o Applied Fluid Mechanics, Vol. 9, No. 6, pp. 77-76, 6. Available online at www.jamonline.net, ISSN 735-357, EISSN 735-3645. A Semi-Analytical Solution or a Porous Channel Flow o a Non-Newtonian
More informationFINITE ELEMENT ANALYSIS OF MIXED CONVECTION HEAT TRANSFER ENHANCEMENT OF A HEATED SQUARE HOLLOW CYLINDER IN A LID-DRIVEN RECTANGULAR ENCLOSURE
Proceedings of the International Conference on Mechanical Engineering 2011 (ICME2011) 18-20 December 2011, Dhaka, Bangladesh ICME11-TH-014 FINITE ELEMENT ANALYSIS OF MIXED CONVECTION HEAT TRANSFER ENHANCEMENT
More informationFinite Element Analysis of Heat and Mass Transfer past an Impulsively Moving Vertical Plate with Ramped Temperature
Journal of Applied Science and Engineering, Vol. 19, No. 4, pp. 385392 (2016) DOI: 10.6180/jase.2016.19.4.01 Finite Element Analysis of Heat and Mass Transfer past an Impulsively Moving Vertical Plate
More information[Lakshmi* et al., 5.(6): June, 2016] ISSN: IC Value: 3.00 Impact Factor: 4.116
[Lakshmi* et al., 5.(6): June, 6] ISSN: 77-9655 IC Value: 3. Impact Factor: 4.6 IJESRT INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY THERMAL RADIATION AND CHEMICAL REACTION EFFECTS
More information