SCRAPED SURFACE HEAT EXCHANGER (SSHE)
|
|
- Sophia Magdalen Dean
- 6 years ago
- Views:
Transcription
1 Intenational Jounal of Engineeing Reseach and Geneal Science Volume 4, Issue 6,Novembe-Decembe, 2016 SCRAPED SURFACE HEAT EXCHANGER (SSHE) Rajesh S C, D. B. Sadashive Gowda, D. G.S.V.L. Naasimham VVPIET Solapu, ajesh.sc044@gmail.com Abstact: This pape deals with Computational Fluid Dynamic (CFD) analysis of 3D model of an SSHE is developed in ode to study the fluid flow and heat tansfe with a steady state lamina, non-isothemal flow of pue glyceine, which can be teated as a newtonian fluid. The vaiation of the local heat tansfe coefficient based on the inne wall tempeatue and bulk fluid tempeatue as a function of the main pocess paametes, namely, otational Reynolds numbe (Re ot ), axial Reynolds numbe (Re axi ) and dimensionless cleaance, is obtained. The esults have shown that viscous dissipation has a significant effect on the cooling of glyceine. The local heat tansfe coefficient inceases slightly when the tip cleaance inceases. Lage inceases of the same occued with highe otational Reynolds numbe and axial Reynolds numbe. A coelation of the aveage Nusselt numbe is obtained in tems of the otational and axial Reynolds numbes. This is expected to be useful in the design of SSHEs handling highly viscous fluids. Keywods: Scaped suface heat exchange, Newtonian fluid, Inne wall tempeatue, Bulk fluid tempeatue, Local heat tansfe coefficient, Nusselt numbe, dimensionless tip cleaance 1. INTRODUCTION SCRAPED SURFACE HEAT EXCHANGER (SSHE) is a device which consists of an annula gap with a cylindical oto and stato as shown in Fig 1. Scaping means emoval of fluid fom the bounday. This beaks the themal and hydodynamic bounday layes at the suface and thee by enhances the heat tansfe. Specifically an SSHEs is used fo the themal teatment of high-viscous fluids. SSHE is widely used in food industy fo steilizing o cooling highly viscous fluids such as mayonnaise, ceam cheese, peanut butte and ice ceam. As the teated fluids in SSHE ae highly viscous, fouling poblems may occu and educe significantly the themal efficiency of SSHE. The pesence of otating blades in the annulus makes it possible to avoid the possible fouling poblem on the heat exchange suface, and impove the heat tansfe teatment eceived by the poduct. A shot discussion of the pevious studies of authos who attempted to focus on the heat tansfe and basic flow pattens in SSHE is pesented hee. Tommelan et al. [1] was the fist peson to descibe the fluid flow and heat tansfe mechanisms fo the design and opeating conditions of the SSHE. The pesence of blades in the annulus makes the fluid flow moe complex compaed to the Coutte-Taylo flow configuations with a blade cleaance of 1µm. Penny and Bell [2] suggested that the cleaance between the edge of the scape blade and the stato wall is not constant, but it is dependent on the opeating conditions of the SSHE. De Gode et al. [3] studied the feezing of wate-ethanol sluies using an ice geneato with a blade cleaance of 3 mm and 1 mm, to examine the heat tansfe coefficient on the exchange suface. Toh and Muikami [4] studied the shape of two scape blades, one cuved and anothe, pependicula to the wall. Bott and Rameo [5] numeically studied an SSHE to compae the oveall heat tansfe coefficient with diffeent numbes of scape blades like 2, 4 and 6. The study shows that inceasing the numbe of scape blades inceases the powe consumption and that thee ae no advantages in inceasing the numbe of scape blades beyond fou. Yataghene et al. [6] conducted a numeical study of the fluid flow and heat tansfe within a SSHE, using 130 µm cleaance of the blade gap with pue glycein fluid and examined the mixing time fo the exit tempeatue of the SSHE. Haod [7] studied the SSHE using a newtonian fluid (wate). One of the key puposes of the pape was to model the heat tansfe fo both lamina and vetical otational flow, to find the tansition between lamina and vetical flow. D Addio [8] analyzed the themal behavio of a new kind of SSHE with an altenate scape blades aangement, namely, A-SSHE, duing the heating and cooling of hazelnut paste, which is a high viscous fluid. He detemined the heat tansfe coefficient by vaying otational Reynolds numbe (5 < Re < 250), axial Reynolds numbe (0.06, 4) and Pandtl numbe (6800, 60000). Stanzinge et al. [9] studied the flow patten in SSHE, using expeimental flow visualization (PIV technique) in a simplified geomety (blades fixed on the stato) and numeical simulation based on finite volume method (FVM). Hatel [10] gave a eview of the SSHE in which paticula attention was given to the cystallization pocess of ice ceam. He concludes that the mechanical enegy dissipated can each 50% of the caloific enegy evacuated by the cooling fluid. Moe ecently viscous heating within SSHE was investigated by Fayolle et al. [11] both expeimentally and numeically. They found that fo Newtonian fluid with high viscosity, the effect of viscous heating was vey impotant
2 Intenational Jounal of Engineeing Reseach and Geneal Science Volume 4, Issue 6,Novembe-Decembe, 2016 All though wok is epoted in the liteatue on the topic of heat tansfe in a SSHE, the conjugate heat tansfe due to finite wall thickness of the stato has not eceived much attention. Moeove issues like inne wall tempeatue, bulk fluid tempeatue and local heat tansfe coefficient fo the themally fully developed flow and the effect of the cleaance between the tip of the blade and the stato wall have not been clealy addessed. The objective of the pesent wok is to ceate a 3D model of an SSHE and study the fluid flow and heat tansfe in steady state lamina non-isothemal flow of pue glyceine (newtonian fluid) with tempeatue dependent viscosity. The cleaance between tip of the blade and the stato is taken as δ gap = 2mm, and 65µm. The elevant dimensionless numbes fo the pesent study ae the Rotational Reynolds numbes (Re ot ), axial Reynolds numbe (Re axi ) and the dimensionless cleaance. The fou otational Reynolds numbes (Re ot ) investigated ae 26.39, 79.17, , and the axial Reynolds numbes (Re axi ) ae 0.6, 1.21, 1.82, and Paametic study is done by keeping the otational Reynolds numbe constant and vaying the axial Reynolds numbe (Re axi ), and epeating the same pocedue as above fo diffeent (Re ot ). Thus fo each cleaance, 16 simulations ae to be pefomed and fo thee diffeent cleaances, 48 simulations ae to be caied out. The local heat tansfe coefficient fo the heat exchange suface is based on the inne wall tempeatue and bulk fluid tempeatue fo each coss section of the SSHE. The paametes fo which themally developed flow occus ae examined. Scape blade Stato Annula gap Fig 1: Tansvesal coss-section of SSHE [6] 298
3 Intenational Jounal of Engineeing Reseach and Geneal Science Volume 4, Issue 6,Novembe-Decembe, MATHEMATICAL FORMULATION 2.1 The physical model and coodinate system A 3D model of SSHE is ceated in Gambit (Ve ). In view of the geomety, the Catesian co-odinate system is chosen to descibe the geomety, whee X, Y and Z axis ae taken in the hoizontal, vetical and axial diections of the SSHE espectively. The model is shown in Fig. 2. Outlet Z Oute wall Stato Roto Inlet t c/δ gap Fig 2: 3D model of SSHE with 2mm cleaance The SSHE consists of a oto with two fixed scape blades. The stato suface epesents the wall heat exchange, whee a constant wall tempeatue is applied to the oute wall. In this study the thee diffeent cleaances between the tip of the blade and stato wall ae 2 mm and 65 µm. Othe dimensions of the SSHE device ae: stato diamete (Ds) =0.065m, oto diamete (D) =0.040m, stato length (Ls) =0.6m, numbe of blades (n) =2, aea of coss section =2.945e-3 m², and numbe of blades (n) = GRID INDEPENDENCE STUDY A commecially available meshing tool is used to geneate good quality hexagonal gids. A stuctued mesh ovelaying the hexahedal elements is geneated with the Gambit (Ve ) softwae meshing tool. The mesh density is inceased nea the wall and especially in the cleaance egion to ensue accuacy thee, as geate tempeatue changes in the fluid ae expected to occu in these egions. The mesh is highly concentated at the tip of the blades and ensued thee wee at least 4 mesh points acoss the tip of the cleaance. This was done by pefoming a numbe of simulations with diffeent mesh sizes, stating fom a coase mesh and efining it until physical esults wee no moe dependent on the mesh size. The hexahedal cells wee etained to have good discetization accuacy. Fou mesh efinements of , , and cells wee tested and compaed with a physical paamete of bulk tempeatue of the fluid fo each coss section of SSHE as shown in Fig 4. Fo good accuacy of the esults, the case with cells can be employed as this gives no significant diffeence compaed to that with cells. A fine mesh of cells is chosen fo futhe analysis as shown in Fig
4 Bulk tempeatue (K) Intenational Jounal of Engineeing Reseach and Geneal Science Volume 4, Issue 6,Novembe-Decembe, µm cleaance cells cells cells cells a) b) c) Figue 3: a) Computational of physical domain of a SSHE and used gid, all physical domains was meshed with hexahedal cells of ( ) b) SSHE Tansvese coss section of the mesh topology of physical c) Vaiation of bulk fluid tempeatue fo diffeent mesh cells fo 65µm cleaance. 4. GOVERNING EQUATIONS In this section the govening equations ae stated fo the heat tansfe and fluid flow including viscous dissipation in the SSHE. Steady state, non-isothemal, incompessible flows have been consideed. The flow is assumed to be lamina in the entie computing fluid domain with otation Reynolds numbe lowe than 250 and axial Reynolds numbe lowe than 4. The consevation equations fo continuity, momentum and enegy fo incompessible flows have been solved in dimensional fom. It is petinent to use the otating efeence fame fomulation to solve the continuity, momentum and enegy equations. The pincipal eason fo employing moving efeence fame is to ende a poblem which is unsteady in the stationay (inetial) fame steady with espect to the moving fame. In the otating efeence fame, the continuity equation in steady state fo the elative velocity is witten as: 0 v (1) The momentum equation is witten as: v v 2 v p (2) Momentum equation contains two additional acceleation tems: the coiolis acceleation 2 v and the centipetal acceleation Enegy equation fo the fluid in steady state fo otating fame is expessed as: v. H k T v (3) Foced heat convection Heat conduction Viscous heating 300
5 Intenational Jounal of Engineeing Reseach and Geneal Science Volume 4, Issue 6,Novembe-Decembe, 2016 In the pesent wok we will neglect the effects of gavity; howeve, it is staightfowad to include it in the axial pessue gadient if the SSHE is mounted with the axis vetical. The stato wall (heat exchange suface) was taken into account with 5 mm thickness. The enegy equation has been solved in the fluid and the conduction equation in steady state applicable to solid egions is: Enegy equation fo solid: C T k T. (4) steel psteel steel The system of non-dimensionalisation is: Re axi v in d equ Re ot.d equ c p P k 5. BOUNDARY CONDITIONS We have examined in this wok the fluid cooling pocess occuing in an SSHE. Fo the fluid flow, the momentum equation (Eq. 3) bounday conditions ae specified as follows: On the stato: v. At the oto and scape blade: v 0. Flow at inlet : v in m/s. Outflow: zeo velocity gadient v/ n=0. The fluid (glyceine) is intoduced at the SSHE inlet with the tempeatue of T inlet =288K, and was cooled with the constant oute wall tempeatue T w =278K. The tempeatue diffeence between the wall heat exchange and fluid inlet was T=10K. Adiabatic conditions wee assumed fo the oto and scape blade. Zeo tempeatue gadient is assumed at the outlet. ANSYS Fluent code uses the finite volume method fo discetization. The govening steady-state equations fo mass and momentum consevation ae solved with a segegated appoach. In this appoach, the equations ae sequentially solved with implicit lineaization. Volume-faces advective fluxes wee appoximated using a second- ode upwind intepolation scheme. Because of the effect of the viscosity vaiation due to heat tansfe, a coupling between velocity and tempeatue fields must be consideed. The pessue-velocity coupling is implemented using iteative coection pocedue (SIMPLEC algoithm). Fo the enegy equation too, a second-ode upwind intepolation scheme is used. 6. CODE VALIDATION The poblem is solved using Fluent CFD code. In ode to check fo the accuacy and coectness of the code, the esults of Yataghene [9] ae epoduced. The poblem deals with the CFD analysis fo vaious otational velocities with a constant volumetic flow ate. The dimensionless exit tempeatue is calculated using Eq. (7) fo pue glycein by vaying otational velocities in the ange 3-10 ev/s. Fig. 4 shows the compaison of the esults of Yataghene[9] and the pesent Fluent esults. Fom this we can comment that the vaiations ae almost identical except that the pesent esults show slightly highe values. This level of ageement is consideed satisfactoy. It may be noted that when inceasing the otational velocities, the tempeatue is inceases due to viscous dissipation of the fluid. T T out wall (5) in T T wall 301
6 Dimensionless exit tempeatue Intenational Jounal of Engineeing Reseach and Geneal Science Volume 4, Issue 6,Novembe-Decembe, 2016 N ev/sec Yataghene Pesent Fig 4: Compaison of tempeatue contous 7. RESULTS and DISCUSSION In ode to obtain the pefomance chaacteistics of 3D model of SSHE fo the fluid flow and heat tansfe, a paametic study is caied out by vaying the cleaance between the tip of the scape blade and the stato wall, the angula velocity of the oto and the axial velocity of the fluid enteing the SSHE. The dimensionless paametes coesponding to the above dimensional paametes ae the dimensionless tip cleaance, the otational Reynolds numbe (Re ot ) and the axial Reynolds numbe (Re axi). Contou plots ae constucted to depict the flow and tempeatue distibutions. Gaphs ae plotted to show the vaiation of inne wall tempeatue, bulk tempeatue and the local heat tansfe coefficient. The local heat tansfe coefficient is calculated with Eq. (8) with espect to the axial distance. Coelations ae obtained fo the aveage Nusselt numbe based on the aveage heat tansfe coefficient in tems of the pocess paametes. h T in, w qw T bulk (6) 7.1 Flow and tempeatue distibutions Figs. 5 (a, b) show the tempeatue contous fo the axial position coesponds to the nea-exit section (Z=0.55 m) of the SSHE, fo vaious dimensional cleaances. The colo code gives infomation about the tempeatue limits, the blue colo coesponding to 278 K and the ed colo coesponding to 288 K. In Fig (5a), coesponding to 2 mm cleaance, the hot fluid is moe located in the coe and the extent of cooled fluid is vey less. Hence highe blade cleaance does not poduce effective cooling of the fluid. When we obseve Figs. 5 (b) fo 65 µm cleaance, bette cooling pocess of the fluid takes place with a pope distibution of the cooling tempeatue is achieved with deceasing the tip of the cleaance and thee is good heat emoval at the bounday suface. a) b) Fig. 5 Tempeatue contous of SSHE coss section in case of Z=0.55 m a) 2 mm cleaance b) 65 µm cleaance Re ot = and Re axi =
7 Local heat tansfe coefficient based on inne wall tempeatue and Local heat tansfe coefficient based on inne wall Inne wall tempeatue and Bulk fluid Inne wall tempeatue and Bulk fluid Intenational Jounal of Engineeing Reseach and Geneal Science Volume 4, Issue 6,Novembe-Decembe, Axial vaiations of tempeatue diffeence and local heat tansfe coefficient The inne wall tempeatue and bulk fluid tempeatue distibutions along the SSHE axial distance ae shown in Figs. 6 (a, b) at diffeent values of axial Reynolds numbe, otational Reynolds numbe and also fo diffeent dimensionless tip cleaances. Fo 2 mm cleaance with a otational Reynolds numbe (Re ot ) of , the inne wall tempeatue is vey high at the inlet section and the tempeatue of the inne wall gadually deceases along the axis of the SSHE. When compaing the two cuves of the inne wall tempeatue and the bulk fluid tempeatue at diffeent axial Reynolds numbe (Re axi ), it can be seen that these two lines ae almost paallel to each othe and we can say that the tempeatue diffeence is unifomly distibuted to the fluid. At the tip cleaances of 65 µm, the scape blades continuously emove the bounday laye suface and bette cooling occus with the inne wall and bulk tempeatues deceasing with axial distance along the SSHE. When inceasing the otational Reynolds numbe, the inne wall tempeatue and bulk fluid tempeatue incease due to viscous dissipation, which in tun deceases the viscosity of the fluid. Reot = (Reaxi=0.6) Reot= (Reaxi=0.6) (Reaxi=1.21) (Reaxi=1.21) (Reaxi=1.82) (Reaxi=1.82) Fig. 6(a) Inne wall tempeatue and bulk fluid tempeatue fo 2mm cleaance with diffeent axial Reynolds numbe Fig. 6(b) Inne wall tempeatue and bulk fluid tempeatue fo 65 µm cleaance with diffeent axial Reynolds numbe The local heat tansfe coefficient based on inne wall tempeatue and bulk fluid tempeatue calculated using Eq. (8) along the axial distance of SSHE is shown in Figs. 7 (a, b) fo diffeent Reynolds numbes and also fo diffeent tip cleaances. The geneal vaiation of local heat tansfe coefficient eveals that it is of high value nea the inlet section of the exchange because of the thickness of the bounday laye is vey small. It deceases continuously due to the inceasing themal bounday laye thickness. When the dimensionless tip cleaance deceases (i.e., 65 µm as against 2 mm cleaance), bette local heat tansfe coefficient is achieved and impovement in the pefomance of the SSHE is obtained. It can be obseved in Fig. 8(a) (2 mm cleaance) that the local heat tansfe coefficient is less compaed to the othe cleaance. This is because the scape blades only bush against but not scape the exchange suface. When tip cleaance deceases, the scape blades emove the bounday laye and esult in highe values of local heat tansfe coefficient. A themally fully developed flow of the fluid is also achieved. Reot = Reaxi = 0.6 Reot= Reaxi=0.6 Reaxi = 1.21 Reaxi= 1.21 Reaxi = 1.82 Reaxi= 1.82 Reaxi = 2.43 Reaxi= 2.43 Fig. 7(a) Local heat tansfe coefficient based on inne wall Fig 7(b) Local heat tansfe coefficient based on inne wall tempeatue and bulk fluid tempeatue fo 2 mm cleaance tempeatue and bulk fluid tempeatue fo 65 µm cleaance with diffeent axial Reynolds numbe with diffeent axial Reynolds numbe 303
8 log10 (Nu log10(nu Intenational Jounal of Engineeing Reseach and Geneal Science Volume 4, Issue 6,Novembe-Decembe, Coelations fo aveage Nusselt numbe The following coelation has been established fo aveage Nusselt numbe by using the Eq. (9) unde seveal opeating conditions of SSHE. Nu avg hdequ (7) k In obtaining the heat tansfe coelation, the otational and axial Reynolds numbes ae taken as paametes. The Pandtl numbe vaiation does not occu because esults ae obtained fo only a single fluid, namely, glyceine. The coelation obtained using multiple egession analysis is: Nu a Re Re (8) b ot c axi whee a, b and c ae the constants of the coelation. In ode to detemine the constants a, b and c of the model seveal numeical simulations wee caied out. Figs. 8 (a, b) show the paity plots between computed and coelated Nusselt numbe in which 16 data points petaining to one dimensionless cleaance ae shown fo each plot. Although not pesented, simila plot is also obtained fo the emaining cleaance. The coelation constants ae given in Table 1: Table 1: Coelation constants Coelation constants 2 mm Cleaance 65 µm Cleaance log10 (Nu log10(nu- a b a) b) c R Fig. 8 Paity plots between computed and coelated values of Nusselt numbe fo a) 2 mm cleaance b) 65 µm cleaance Accoding to obtained esults it appeas that the incease of the otating speed impoves the efficiency of the SSHE fo all consideed dimensionless cleaances. 8. CONCLUSIONS A 3D CFD model is employed to examine the themal pefomance of an industial scaped suface heat exchange device. A paametic study is done and the following conclusions ae eached: 1) The diffeence between inne wall tempeatue and bulk fluid tempeatue inceases due to viscous dissipation of the fluid
9 Intenational Jounal of Engineeing Reseach and Geneal Science Volume 4, Issue 6,Novembe-Decembe, ) The local heat tansfe coefficient based on inne wall tempeatue and bulk fluid tempeatue inceases along the length of the SSHE in the axial diection with deceasing tip cleaance. 3) In case of 2 mm cleaance, the local heat tansfe coefficient is vey less compaed to othe cleaance because the scape blade only bushes but does not to scape the suface. Fo 65µm cleaance, the scape blades scape the bounday laye at the suface and this inceases the local heat tansfe coefficient. 4) The local heat tansfe coefficient inceases with inceasing otational Reynolds numbe; this impoves the pefomance of the SSHE. 5) A heat tansfe coelation is obtained fo the aveage Nusselt numbe in tems of the otational and axial Reynolds numbes, which ae the pocess paametes. REFERENCES: [1] Tommelen A. M, Beek W. J, Flow Phenomena in a Scaped Suface Heat Exchange ( votato type), Chem. Engg Sci, Vol. 26, No. 11, pp [2] Penney W. R, and Bell K. J, Ind. Engng Chem (ap) 40. [3] De Goede R, De Jong E. J, Heat Tansfe Popeties of Scaped Suface Heat Exchange in the tubulent Flow Regime, Chem. Eng. Sci. Vol. 48, No. 1993, pp [4] Toh and Muikami. Y, (1982), Powe Consumption of a Fluid Loaded Floating Scape Blade, J Chem Engg JPN. Vol. 15, No. 6, pp 493 [5] Bott T. R, Romeo. JJB, (1966), The Chaacteistic Dimension in Scaped Suface Heat Exchange. J Chem Engg, 44, 226. [6] Mouad Yataghene. Jack Legand, A 3D-CFD model themal analysis within a scaped suface heat exchange, Chem Engg. Vol 71, No.2013, pp [7] Häöd. M, (1987), Residence time distibution, heat tansfe and powe equiements, Jounal of Food Pocess Engg 9: 1-62 [8] D Addio. L, Dejong E. j, 1993, Heat Tansfe Popeties of a Scaped Suface Heat Exchange in the Tubulent Flow Regime, Chem, Engg, Sci, Vol No, 48, pp [9] Stanzinge M, Feigl k, Windhab E, Newtonian Flow Behavio in Naow Annula gap Reactos, Chem Eng Sci 2001, Vol. 56, No. 11, pp [10] Hatel R. W, Ice Cystallization duing Manufactue of Ice Ceam, Tends Food Sci Technol 1996, Vol. 7, No. 10, pp [11] Fayolle F, Legaand J, Expeimental and numeical analysis of heat tansfe including viscous dissipation in a scaped suface heat exchange Chem Eng pocess, Vol. 2009, No. 48, pp
NUMERICAL SIMULATION OF FLUID FLOW IN ENCLOSED ROTATING FILTER AND DISK
VOL., NO. 9, SEPTEMBER 010 ISSN 1819-6608 ARPN Jounal of Engineeing and Applied Sciences 006-010 Asian Reseach Publishing Netwok (ARPN). All ights eseved. www.apnjounals.com NUMERICAL SIMULATION OF FLUID
More informationNATURAL CONVECTION HEAT TRANSFER WITHIN VERTICALLY ECCENTRIC DOMED SKYLIGHTS CAVITIES
Poceedings: Building Simulation 007 NATURAL CONVECTION HEAT TRANSFER WITHIN VERTICALLY ECCENTRIC DOMED SKYLIGHTS CAVITIES A. Satipi, A. Laouadi, D. Naylo 3, R. Dhib 4 Depatment of Mechanical and Industial
More informationUNSTEADY MIXED CONVECTION WITH HEATING EFFECTS IN A HORIZONTAL ANNULUS WITH CONSTANT ROTATING OUTER CYLINDER AND CONSTANT MAGNETIC FIELD
UNSEADY MIXED CONECION WIH HEAING EFFECS IN A HORIZONAL ANNULUS WIH CONSAN ROAING OUER CYLINDER AND CONSAN MAGNEIC FIELD H. R. MOZAYYENI*,ASGHAR B. RAHIMI** * Gaduate student ** Pofesso, Faculty of Engineeing,
More informationEffect of Downstream Flapping Plate on the Flow Field Characteristics behind a Circular Cylinder
Poceedings of the 3 d Intenational Confeence on Fluid Flow, Heat and Mass Tansfe (FFHMT 16) Ottawa, Canada May 2 3, 2016 Pape No. 169 Effect of Downsteam Flapping Plate on the Flow Field Chaacteistics
More informationA new class of exact solutions of the Navier Stokes equations for swirling flows in porous and rotating pipes
Advances in Fluid Mechanics VIII 67 A new class of exact solutions of the Navie Stokes equations fo swiling flows in poous and otating pipes A. Fatsis1, J. Stathaas2, A. Panoutsopoulou3 & N. Vlachakis1
More informationIn the previous section we considered problems where the
5.4 Hydodynamically Fully Developed and Themally Developing Lamina Flow In the pevious section we consideed poblems whee the velocity and tempeatue pofile wee fully developed, so that the heat tansfe coefficient
More informationThe Combined Effect of Chemical reaction, Radiation, MHD on Mixed Convection Heat and Mass Transfer Along a Vertical Moving Surface
Available at http://pvamu.edu/aam Appl. Appl. Math. ISSN: 93-966 Vol. 5, Issue (Decembe ), pp. 53 53 (Peviously, Vol. 5, Issue, pp. 63 6) Applications and Applied Mathematics: An Intenational Jounal (AAM)
More informationHydroelastic Analysis of a 1900 TEU Container Ship Using Finite Element and Boundary Element Methods
TEAM 2007, Sept. 10-13, 2007,Yokohama, Japan Hydoelastic Analysis of a 1900 TEU Containe Ship Using Finite Element and Bounday Element Methods Ahmet Egin 1)*, Levent Kaydıhan 2) and Bahadı Uğulu 3) 1)
More informationInstitute of Fundamental Sciences-Mathematics,Massey University, Palmerston North,NZ
Poceedings20th NZ Geothemal Wokshop 1998 FLUID FLOW A FLASHING CYCLONE SEPARATOR Institute of Fundamental SciencesMathematics,Massey Univesity, Palmeston Noth,NZ SUMMARY In geothemal steamgatheingsystems
More informationCBE Transport Phenomena I Final Exam. December 19, 2013
CBE 30355 Tanspot Phenomena I Final Exam Decembe 9, 203 Closed Books and Notes Poblem. (20 points) Scaling analysis of bounday laye flows. A popula method fo measuing instantaneous wall shea stesses in
More informationNumerical simulation of velocity and temperature fields in natural circulation loop
Jounal of Physics: Confeence Seies PAPER OPEN ACCESS Numeical simulation of velocity and tempeatue fields in natual ciculation loop To cite this aticle: L A Sukomel and O N Kaban kov 2017 J. Phys.: Conf.
More informationResearch Article EXPERIMENTAL STUDY OF HEAT TRANSFER CHARACTERISTICS OF STAINLESS STEEL FIBROUS FLOW INSULATOR
Tansactions of the TSME (16) Vol. 4, No. 2, 148 155 Jounal of seach and Applications in Mechanical Engineeing Copyight 16 by TSME ISSN 2229-2152 pint DOI: 1.14456/jame.16.15 seach Aticle EXPERIMENTAL STUDY
More informationTHE INFLUENCE OF THE MAGNETIC NON-LINEARITY ON THE MAGNETOSTATIC SHIELDS DESIGN
THE INFLUENCE OF THE MAGNETIC NON-LINEARITY ON THE MAGNETOSTATIC SHIELDS DESIGN LIVIU NEAMŢ 1, ALINA NEAMŢ, MIRCEA HORGOŞ 1 Key wods: Magnetostatic shields, Magnetic non-lineaity, Finite element method.
More informationPulse Neutron Neutron (PNN) tool logging for porosity Some theoretical aspects
Pulse Neuton Neuton (PNN) tool logging fo poosity Some theoetical aspects Intoduction Pehaps the most citicism of Pulse Neuton Neuon (PNN) logging methods has been chage that PNN is to sensitive to the
More informationAnalysis of high speed machining center spindle dynamic unit structure performance Yuan guowei
Intenational Confeence on Intelligent Systems Reseach and Mechatonics Engineeing (ISRME 0) Analysis of high speed machining cente spindle dynamic unit stuctue pefomance Yuan guowei Liaoning jidian polytechnic,dan
More informationSupplementary Figure 1. Circular parallel lamellae grain size as a function of annealing time at 250 C. Error bars represent the 2σ uncertainty in
Supplementay Figue 1. Cicula paallel lamellae gain size as a function of annealing time at 50 C. Eo bas epesent the σ uncetainty in the measued adii based on image pixilation and analysis uncetainty contibutions
More informationA scaling-up methodology for co-rotating twin-screw extruders
A scaling-up methodology fo co-otating twin-scew extudes A. Gaspa-Cunha, J. A. Covas Institute fo Polymes and Composites/I3N, Univesity of Minho, Guimaães 4800-058, Potugal Abstact. Scaling-up of co-otating
More informationSteady State and Transient Performance Analysis of Three Phase Induction Machine using MATLAB Simulations
Intenational Jounal of Recent Tends in Engineeing, Vol, No., May 9 Steady State and Tansient Pefomance Analysis of Thee Phase Induction Machine using MATAB Simulations Pof. Himanshu K. Patel Assistant
More informationASTR415: Problem Set #6
ASTR45: Poblem Set #6 Cuan D. Muhlbege Univesity of Mayland (Dated: May 7, 27) Using existing implementations of the leapfog and Runge-Kutta methods fo solving coupled odinay diffeential equations, seveal
More informationELASTIC ANALYSIS OF CIRCULAR SANDWICH PLATES WITH FGM FACE-SHEETS
THE 9 TH INTERNATIONAL CONFERENCE ON COMPOSITE MATERIALS ELASTIC ANALYSIS OF CIRCULAR SANDWICH PLATES WITH FGM FACE-SHEETS R. Sbulati *, S. R. Atashipou Depatment of Civil, Chemical and Envionmental Engineeing,
More informationTHERMODYNAMIC OPTIMIZATION OF TUBULAR HEAT EXCHANGERS BASED ON MINIMUM IRREVERSIBILITY CRITERIA
THERMODYNAMIC OPTIMIZATION OF TUBULAR HEAT EXCHANGER BAED ON MINIMUM IRREVERIBILITY CRITERIA As. dd. ing. Adina GHEORGHIAN, Pof. d. ing. Alexandu DOBROVICECU, As. dd. ing. Andeea MARIN,.l. d. ing. Claudia
More informationis the instantaneous position vector of any grid point or fluid
Absolute inetial, elative inetial and non-inetial coodinates fo a moving but non-defoming contol volume Tao Xing, Pablo Caica, and Fed Sten bjective Deive and coelate the govening equations of motion in
More informationConservative Averaging Method and its Application for One Heat Conduction Problem
Poceedings of the 4th WSEAS Int. Conf. on HEAT TRANSFER THERMAL ENGINEERING and ENVIRONMENT Elounda Geece August - 6 (pp6-) Consevative Aveaging Method and its Application fo One Heat Conduction Poblem
More informationInternational Journal of Mathematical Archive-9(5), 2018, Available online through ISSN
Intenational Jounal of Mathematical Achive-9(5), 18, -3 Available online though www.ijma.info ISSN 9 546 MHD FLOW OVER A MOVING INFINITE VERTICAL POROUS PLATE WITH UNIFORM HEAT FLUX IN THE PRESENCE OF
More informationRaju Ananth Structural Integrity Associates, Inc Hellyer Avenue, Suite 210 San Jose, CA
Poceedings of the ASME 1 Pessue Vessels & Piping Confeence PVP1 July 15-19, 1, Toonto, Ontaio, CANADA PVP1-78116 Flow Loads on the Shoud in a Boiling Wate Reacto Due to a Reciculation Outlet Line Beak
More information, and the curve BC is symmetrical. Find also the horizontal force in x-direction on one side of the body. h C
Umeå Univesitet, Fysik 1 Vitaly Bychkov Pov i teknisk fysik, Fluid Dynamics (Stömningsläa), 2013-05-31, kl 9.00-15.00 jälpmedel: Students may use any book including the textbook Lectues on Fluid Dynamics.
More informationPredicting Cone-in-Cone Blender Efficiencies from Key Material Properties
Pedicting Cone-in-Cone Blende Efficiencies fom Key Mateial Popeties By: D. Key Johanson Mateial Flow Solutions, Inc. NOTICE: This is the autho s vesion of a wok accepted fo publication by Elsevie. Changes
More informationELECTRONICS COOLING FAN NOISE PREDICTION
Nice, Côte d Azu, Fance, 7-9 Septembe 006 Antoine Dozolme 1, Hossam Metwally, Thiey Machal 1. 1 Fluent Benelux, Avenue Pasteu 4, 1300 Wave Belgium Fluent Inc., 1007 Chuch Steet, Suite 50, Evanston, IL
More informationAn Exact Solution of Navier Stokes Equation
An Exact Solution of Navie Stokes Equation A. Salih Depatment of Aeospace Engineeing Indian Institute of Space Science and Technology, Thiuvananthapuam, Keala, India. July 20 The pincipal difficulty in
More informationT. Raja Rani. Military Technological College, Muscat, Oman. Abstract
ISSN: 78-8 Vol. Issue, Octobe - Fee Convection ove a Vaying all Vetical Cylinde embedded in a Poous medium ith effect of Radiation, Vaiable Fluid Popeties and Statification. T. Raja Rani Militay Technological
More informationModeling of trickle bed reactor for hydrotreating of vacuum gas oils: effect of kinetic type on reactor modeling
17 th Euopean ymposium on Compute Aided Pocess Engineeing ECAPE17 V. Plesu and P.. Agachi (Editos) 007 Elsevie B.V. All ights eseved. 1 Modeling of tickle bed eacto fo hydoteating of vacuum gas oils: effect
More informationRadial Inflow Experiment:GFD III
Radial Inflow Expeiment:GFD III John Mashall Febuay 6, 003 Abstact We otate a cylinde about its vetical axis: the cylinde has a cicula dain hole in the cente of its bottom. Wate entes at a constant ate
More informationThermodynamic Head Loss in a Channel with Combined Radiation and Convection Heat Transfer
Jounal of Poe and Enegy Engineeing, 04,, 57-63 Published Online Septembe 04 in SciRes. http://.scip.og/jounal/jpee http://dx.doi.og/0.436/jpee.04.9009 hemodynamic Head Loss in a Channel ith Combined Radiation
More informationA dual-reciprocity boundary element method for axisymmetric thermoelastodynamic deformations in functionally graded solids
APCOM & ISCM 11-14 th Decembe, 013, Singapoe A dual-ecipocity bounday element method fo axisymmetic themoelastodynamic defomations in functionally gaded solids *W. T. Ang and B. I. Yun Division of Engineeing
More information1) Consider an object of a parabolic shape with rotational symmetry z
Umeå Univesitet, Fysik 1 Vitaly Bychkov Pov i teknisk fysik, Fluid Mechanics (Stömningsläa), 01-06-01, kl 9.00-15.00 jälpmedel: Students may use any book including the tetbook Lectues on Fluid Dynamics.
More informationEffect of drag on the performance for an efficient wind turbine blade design
Available online at www.sciencediect.com Enegy Pocedia 18 (01 ) 404 415 Abstact Effect of dag on the pefomance fo an efficient wind tubine blade design D. Eng. Ali H. Almukhta Univesity of Technology Email-
More informationMAGNETIC FIELD AROUND TWO SEPARATED MAGNETIZING COILS
The 8 th Intenational Confeence of the Slovenian Society fo Non-Destuctive Testing»pplication of Contempoay Non-Destuctive Testing in Engineeing«Septembe 1-3, 5, Potoož, Slovenia, pp. 17-1 MGNETIC FIELD
More information1 Similarity Analysis
ME43A/538A/538B Axisymmetic Tubulent Jet 9 Novembe 28 Similaity Analysis. Intoduction Conside the sketch of an axisymmetic, tubulent jet in Figue. Assume that measuements of the downsteam aveage axial
More informationMECHANICAL PULPING REFINER MECHANICAL PULPS
MECHANICAL PULPING REFINER MECHANICAL PULPS Histoy of efine mechanical pulping Fo many yeas all mechanical pulp was made fom stone goundwood (SGW). This equied whole logs. Stating in the 950s, but eally
More informationModelling Vortex Fields in Metal Smelting Furnaces
Int. Jnl. of Multiphysics Volume 4 Numbe 4 00 35 Modelling Votex Fields in Metal Smelting Funaces Oleg Kazak, Oleksand Semko Depatment Of Physics, Donetsk National Univesity, Donetsk, Ukaine Email: olegkazak@yandex.u;
More informationMathematical Analysis and Numerical Simulation of High Frequency Electromagnetic Field in Soft Contact Continuous Casting Mold
, pp. 974 981 Mathematical Analysis and Numeical Simulation of High Fequency Electomagnetic Field in Soft Contact Continuous Casting Mold Xianzhao NA, Xingzhong ZHANG and Yong GAN National Engineeing &
More informationNumerical Integration
MCEN 473/573 Chapte 0 Numeical Integation Fall, 2006 Textbook, 0.4 and 0.5 Isopaametic Fomula Numeical Integation [] e [ ] T k = h B [ D][ B] e B Jdsdt In pactice, the element stiffness is calculated numeically.
More informationRotor Blade Performance Analysis with Blade Element Momentum Theory
Available online at www.sciencediect.com ScienceDiect Enegy Pocedia 5 (7 ) 3 9 The 8 th Intenational Confeence on Applied Enegy ICAE6 Roto Blade Pefomance Analysis with Blade Element Momentum Theoy Faisal
More informationSTUDY ON 2-D SHOCK WAVE PRESSURE MODEL IN MICRO SCALE LASER SHOCK PEENING
Study Rev. Adv. on -D Mate. shock Sci. wave 33 (13) pessue 111-118 model in mico scale lase shock peening 111 STUDY ON -D SHOCK WAVE PRESSURE MODEL IN MICRO SCALE LASER SHOCK PEENING Y.J. Fan 1, J.Z. Zhou,
More informationCoupled Electromagnetic and Heat Transfer Simulations for RF Applicator Design for Efficient Heating of Materials
Coupled Electomagnetic and Heat Tansfe Simulations fo RF Applicato Design fo Efficient Heating of Mateials Jeni Anto 1 and Raj C Thiagaajan 2 * 1 Reseache, Anna Univesity, Chennai, 2 ATOA Scientific Technologies
More informationNatural Convection Heat Transfer in Horizontal Concentric Annulus between Outer Cylinder and Inner Flat Tube
Anba Jounal fo Engineeing Sciences Natual Convection Heat Tansfe in Hoizontal Concentic Annulus between Oute Cylinde and Inne Flat Tube Waleed Mohammed Abed Instucto Ame Jameel Shaeef Asst. Instucto Univesity
More informationEmpirical Prediction of Fitting Densities in Industrial Workrooms for Ray Tracing. 1 Introduction. 2 Ray Tracing using DRAYCUB
Empiical Pediction of Fitting Densities in Industial Wokooms fo Ray Tacing Katina Scheebnyj, Muay Hodgson Univesity of Bitish Columbia, SOEH-MECH, Acoustics and Noise Reseach Goup, 226 East Mall, Vancouve,
More informationThree dimensional flow analysis in Axial Flow Compressors
1 Thee dimensional flow analysis in Axial Flow Compessos 2 The ealie assumption on blade flow theoies that the flow inside the axial flow compesso annulus is two dimensional means that adial movement of
More informationNuclear size corrections to the energy levels of single-electron atoms
Nuclea size coections to the enegy levels of single-electon atoms Babak Nadii Nii a eseach Institute fo Astonomy and Astophysics of Maagha (IAAM IAN P. O. Box: 554-44. Abstact A study is made of nuclea
More informationMODULE 5 ADVANCED MECHANICS GRAVITATIONAL FIELD: MOTION OF PLANETS AND SATELLITES VISUAL PHYSICS ONLINE
VISUAL PHYSICS ONLIN MODUL 5 ADVANCD MCHANICS GRAVITATIONAL FILD: MOTION OF PLANTS AND SATLLITS SATLLITS: Obital motion of object of mass m about a massive object of mass M (m
More information1D2G - Numerical solution of the neutron diffusion equation
DG - Numeical solution of the neuton diffusion equation Y. Danon Daft: /6/09 Oveview A simple numeical solution of the neuton diffusion equation in one dimension and two enegy goups was implemented. Both
More informationChemical Reaction and Thermal Diffusion Effects on Mass Transfer Flow through an Inclined Plate
Open Jounal of Fluid Dynamics, 6, 6, 6-74 Published Online Mach 6 in SciRes. http://www.scip.og/jounal/ojfd http://dx.doi.og/.436/ojfd.6.66 Chemical Reaction and Themal Diffusion Effects on Mass Tansfe
More informationLight Time Delay and Apparent Position
Light Time Delay and ppaent Position nalytical Gaphics, Inc. www.agi.com info@agi.com 610.981.8000 800.220.4785 Contents Intoduction... 3 Computing Light Time Delay... 3 Tansmission fom to... 4 Reception
More informationDynamics of Rotating Discs
Dynamics of Rotating Discs Mini Poject Repot Submitted by Subhajit Bhattachaya (0ME1041) Unde the guidance of Pof. Anivan Dasgupta Dept. of Mechanical Engineeing, IIT Khaagpu. Depatment of Mechanical Engineeing,
More informationThe Substring Search Problem
The Substing Seach Poblem One algoithm which is used in a vaiety of applications is the family of substing seach algoithms. These algoithms allow a use to detemine if, given two chaacte stings, one is
More informationLevitation force analysis of ring and disk shaped permanent magnet-high temperature superconductor
Inn Jounal of Pue & Applied Physics Vol. 55, Apil 017, pp. 61-68 Levitation foce analysis of ing and disk shaped pemanent magnet-high tempeatue supeconducto Sinan Basaan & Selim Sivioglu* Depatment of
More informationChapter 3 Optical Systems with Annular Pupils
Chapte 3 Optical Systems with Annula Pupils 3 INTRODUCTION In this chapte, we discuss the imaging popeties of a system with an annula pupil in a manne simila to those fo a system with a cicula pupil The
More informationRecent Advances in Chemical Engineering, Biochemistry and Computational Chemistry
Themal Conductivity of Oganic Liquids: a New Equation DI NICOLA GIOVANNI*, CIARROCCHI ELEONORA, PIERANTOZZI ARIANO, STRYJEK ROAN 1 DIIS, Univesità Politecnica delle ache, 60131 Ancona, ITALY *coesponding
More informationINFLUENCE OF GROUND INHOMOGENEITY ON WIND INDUCED GROUND VIBRATIONS. Abstract
INFLUENCE OF GROUND INHOMOGENEITY ON WIND INDUCED GROUND VIBRATIONS Mohammad Mohammadi, National Cente fo Physical Acoustics, Univesity of Mississippi, MS Caig J. Hicey, National Cente fo Physical Acoustics,
More informationTo Feel a Force Chapter 7 Static equilibrium - torque and friction
To eel a oce Chapte 7 Chapte 7: Static fiction, toque and static equilibium A. Review of foce vectos Between the eath and a small mass, gavitational foces of equal magnitude and opposite diection act on
More informationComputational Methods of Solid Mechanics. Project report
Computational Methods of Solid Mechanics Poject epot Due on Dec. 6, 25 Pof. Allan F. Bowe Weilin Deng Simulation of adhesive contact with molecula potential Poject desciption In the poject, we will investigate
More informationPES 3950/PHYS 6950: Homework Assignment 6
PES 3950/PHYS 6950: Homewok Assignment 6 Handed out: Monday Apil 7 Due in: Wednesday May 6, at the stat of class at 3:05 pm shap Show all woking and easoning to eceive full points. Question 1 [5 points]
More informationLiquid gas interface under hydrostatic pressure
Advances in Fluid Mechanics IX 5 Liquid gas inteface unde hydostatic pessue A. Gajewski Bialystok Univesity of Technology, Faculty of Civil Engineeing and Envionmental Engineeing, Depatment of Heat Engineeing,
More informationCalculation of Temperature Rise in Dry-type Air-core Reactors Using Strong Coupling of Fluid-Temperature Field
Reseach Jounal of Applied Sciences, Engineeing and Technology 5(10: 941-945, 013 ISSN: 040-7459; e-issn: 040-7467 Maxwell Scientific Oganization, 013 Submitted: Septembe 15, 01 Accepted: Octobe 4, 01 Published:
More informationIN SITU SOUND ABSORPTION COEFFICIENT MEASUREMENT OF VARIOUS SURFACES
IN SITU SOUND ABSORPTION COEFFICIENT MEASUREMENT OF VARIOUS SURFACES PACS REFERENCES : 43.20.El, 43.20.Ye, 43.55.Ev, 43.58.Bh Michel Béengie 1 ; Massimo Gaai 2 1 Laboatoie Cental des Ponts et Chaussées
More informationPARTICLE TRANSPORT AND DEPOSITION IN POROUS STRUCTURES: EFFECTS OF PARTICLE PROPERTIES, POROSITY AND REYNOLDS NUMBER
ISTP-16, 2005, PRAGUE 16 TH INTERNATIONAL SYMPOSIUM ON TRANSPORT PHENOMENA PARTICLE TRANSPORT AND DEPOSITION IN POROUS STRUCTURES: EFFECTS OF PARTICLE PROPERTIES, POROSITY AND REYNOLDS NUMBER S. Kuz*,
More informationDescription of TEAM Workshop Problem 33.b: Experimental Validation of Electric Local Force Formulations.
1 Desciption of TEAM Wokshop Poblem 33.b: Expeimental Validation of Electic Local Foce Fomulations. Olivie Baé, Pascal Bochet, Membe, IEEE Abstact Unde extenal stesses, the esponse of any mateial is a
More informationCentral Coverage Bayes Prediction Intervals for the Generalized Pareto Distribution
Statistics Reseach Lettes Vol. Iss., Novembe Cental Coveage Bayes Pediction Intevals fo the Genealized Paeto Distibution Gyan Pakash Depatment of Community Medicine S. N. Medical College, Aga, U. P., India
More informationScaling laws for dynamos in rotating spherical shells and applications to planetary magnetic fields
Scaling laws fo dynamos in otating spheical shells and applications to planetay magnetic fields Ulich Chistensen Max-Planck-Institute fo Sola System Reseach, Katlenbug-Lindau, Gemany In collaboation with
More informationA NEW VARIABLE STIFFNESS SPRING USING A PRESTRESSED MECHANISM
Poceedings of the ASME 2010 Intenational Design Engineeing Technical Confeences & Computes and Infomation in Engineeing Confeence IDETC/CIE 2010 August 15-18, 2010, Monteal, Quebec, Canada DETC2010-28496
More informationSwissmetro: design methods for ironless linear transformer
Swissmeto: design methods fo ionless linea tansfome Nicolas Macabey GESTE Engineeing SA Scientific Pak PSE-C, CH-05 Lausanne, Switzeland Tel (+4) 2 693 83 60, Fax. (+4) 2 693 83 6, nicolas.macabey@geste.ch
More informationLINEAR AND NONLINEAR ANALYSES OF A WIND-TUNNEL BALANCE
LINEAR AND NONLINEAR ANALYSES O A WIND-TUNNEL INTRODUCTION BALANCE R. Kakehabadi and R. D. Rhew NASA LaRC, Hampton, VA The NASA Langley Reseach Cente (LaRC) has been designing stain-gauge balances fo utilization
More informationA Three-Dimensional Magnetic Force Solution Between Axially-Polarized Permanent-Magnet Cylinders for Different Magnetic Arrangements
Poceedings of the 213 Intenational Confeence on echanics, Fluids, Heat, Elasticity Electomagnetic Fields A Thee-Dimensional agnetic Foce Solution Between Axially-Polaied Pemanent-agnet Cylindes fo Diffeent
More informationFresnel Diffraction. monchromatic light source
Fesnel Diffaction Equipment Helium-Neon lase (632.8 nm) on 2 axis tanslation stage, Concave lens (focal length 3.80 cm) mounted on slide holde, iis mounted on slide holde, m optical bench, micoscope slide
More informationMolecular dynamics simulation of ultrafast laser ablation of fused silica
IOP Publishing Jounal of Physics: Confeence Seies 59 (27) 1 14 doi:1.188/1742-6596/59/1/22 Eighth Intenational Confeence on Lase Ablation Molecula dynamics simulation of ultafast lase ablation of fused
More informationDuality between Statical and Kinematical Engineering Systems
Pape 00, Civil-Comp Ltd., Stiling, Scotland Poceedings of the Sixth Intenational Confeence on Computational Stuctues Technology, B.H.V. Topping and Z. Bittna (Editos), Civil-Comp Pess, Stiling, Scotland.
More informationAsymptotic Model of the Flow in Metallic and Elastomeric Progressive Cavity Pump
Poceedings of COBEM 009 Copyight c 009 by ABCM 0th Intenational Congess of Mechanical Engineeing Novembe 15-0, 009, Gamado, RS, Bazil Asymptotic Model of the Flow in Metallic and Elastomeic Pogessive Cavity
More informationEFFECTS OF FRINGING FIELDS ON SINGLE PARTICLE DYNAMICS. M. Bassetti and C. Biscari INFN-LNF, CP 13, Frascati (RM), Italy
Fascati Physics Seies Vol. X (998), pp. 47-54 4 th Advanced ICFA Beam Dynamics Wokshop, Fascati, Oct. -5, 997 EFFECTS OF FRININ FIELDS ON SINLE PARTICLE DYNAMICS M. Bassetti and C. Biscai INFN-LNF, CP
More informationModelling vortex formation in an unbaffled stirred tank reactors
Modelling votex fomation in an unbaffled stied tank eactos G. M. Catland Glove and J. J. Fitzpatick * Cuent Addess: Foschungzentum Rossendof, Institut fü Sicheheitsfoschung, P. O. Box 51 01 19, D-01314
More informationGeneral Railgun Function
Geneal ailgun Function An electomagnetic ail gun uses a lage Loentz foce to fie a pojectile. The classic configuation uses two conducting ails with amatue that fits between and closes the cicuit between
More informationThe Millikan Experiment: Determining the Elementary Charge
LAB EXERCISE 7.5.1 7.5 The Elementay Chage (p. 374) Can you think of a method that could be used to suggest that an elementay chage exists? Figue 1 Robet Millikan (1868 1953) m + q V b The Millikan Expeiment:
More informationAnalysis and Optimization of a Special Type of Dielectric Loaded Resonant Cavity for Mobile Communication Filters
328 Analysis and Optimization of a Special Type of Dielectic Loaded Resonant Cavity fo Mobile Communication Filtes Haold S. Showes, Banmali S. Rawat *, Syam S. Challa Depatment of Electical and Biomedical
More informationJ. Electrical Systems 1-3 (2005): Regular paper
K. Saii D. Rahem S. Saii A Miaoui Regula pape Coupled Analytical-Finite Element Methods fo Linea Electomagnetic Actuato Analysis JES Jounal of Electical Systems In this pape, a linea electomagnetic actuato
More informationPROBLEM SET #3A. A = Ω 2r 2 2 Ω 1r 2 1 r2 2 r2 1
PROBLEM SET #3A AST242 Figue 1. Two concentic co-axial cylindes each otating at a diffeent angula otation ate. A viscous fluid lies between the two cylindes. 1. Couette Flow A viscous fluid lies in the
More informationTo investigate Heat Loss of a Fluid flowing through a Pipeline for Turbulent Flow
ISSN: 2454-2377 Volume, Issue 9, Januay 206 To investigate Heat Loss of a Fluid flowing though a Pipeline fo Tubulent Flow Maheshkuma Mauti Patil, Maiappan D. Nada 2, Suhas A. Uthale 3 PG Student, Mechanical
More informationSUPPLEMENTARY INFORMATION
Sample pepaations Fe 0.5 Co 0.5 Si single cystal was gown by the floating zone technique. The phase puity and cation concentations wee checked by powde X-ay diffaction and Enegy Dispesive X-ay spectoscopy
More informationChem 453/544 Fall /08/03. Exam #1 Solutions
Chem 453/544 Fall 3 /8/3 Exam # Solutions. ( points) Use the genealized compessibility diagam povided on the last page to estimate ove what ange of pessues A at oom tempeatue confoms to the ideal gas law
More informationDiffusion and Transport. 10. Friction and the Langevin Equation. Langevin Equation. f d. f ext. f () t f () t. Then Newton s second law is ma f f f t.
Diffusion and Tanspot 10. Fiction and the Langevin Equation Now let s elate the phenomena of ownian motion and diffusion to the concept of fiction, i.e., the esistance to movement that the paticle in the
More informationModeling of Non-stationary Gas Flow in Annular Nozzle
25 th ICDERS August 2 7 215 Leeds UK Modeling of Non-stationay Gas Flow in Annula Nozzle Vladimi A.Levin 1 Nataliya E.Afonina 1 Valeiy G.Gomov 1 Ivan S.Manuylovich 1 Gennadiy D.Smekhov 1 Aleksande N.Khmelevsky
More informationPhysics 235 Chapter 5. Chapter 5 Gravitation
Chapte 5 Gavitation In this Chapte we will eview the popeties of the gavitational foce. The gavitational foce has been discussed in geat detail in you intoductoy physics couses, and we will pimaily focus
More informationSafety variations in steel designed using Eurocode 3
JCSS Wokshop on eliability Based Code Calibation Safety vaiations in steel designed using Euocode 3 Mike Byfield Canfield Univesity Swindon, SN6 8LA, UK David Nethecot Impeial College London SW7 2BU, UK
More informationApplication of homotopy perturbation method to the Navier-Stokes equations in cylindrical coordinates
Computational Ecology and Softwae 5 5(): 9-5 Aticle Application of homotopy petubation method to the Navie-Stokes equations in cylindical coodinates H. A. Wahab Anwa Jamal Saia Bhatti Muhammad Naeem Muhammad
More informationANALYSIS OF PRESSURE VARIATION OF FLUID IN AN INFINITE ACTING RESERVOIR
Nigeian Jounal of Technology (NIJOTECH) Vol. 36, No. 1, Januay 2017, pp. 80 86 Copyight Faculty of Engineeing, Univesity of Nigeia, Nsukka, Pint ISSN: 0331-8443, Electonic ISSN: 2467-8821 www.nijotech.com
More informationDesigning a Sine-Coil for Measurement of Plasma Displacements in IR-T1 Tokamak
Designing a Sine-Coil fo Measuement of Plasma Displacements in IR-T Tokamak Pejman Khoshid, M. Razavi, M. Ghoanneviss, M. Molaii, A. TalebiTahe, R. Avin, S. Mohammadi and A. NikMohammadi Dept. of Physics,
More informationReasons to Build a Hydraulic Model
Reasons to Build a Hydaulic Model Detemine dischage coefficient fo lage flow measuement stuctue (spillway o wei) Develop effective method fo enegy dissipation at outlet of hydaulic stuctue Development
More informationarxiv: v1 [physics.flu-dyn] 21 Dec 2018
1 axiv:1812.921v1 [physics.flu-dyn] 21 Dec 218 The cicula capillay jump Rajesh K. Bhagat 1, and P. F. Linden 2, 1 Depatment of Chemical Engineeing and Biotechnology, Univesity of Cambidge, Philippa Fawcett
More informationAxial Magnetic Field Effect on Taylor-Couette Flow
Jounal of Applied Fluid Mechanics, Vol. 8, No., pp. 55-64, 05. Available online at www.jafmonline.net, ISSN 735-357, EISSN 735-3645. DOI: 0.8869/acadpub.jafm.73.38.595 Axial Magnetic Field Effect on Taylo-Couette
More informationCOMPUTATIONS OF ELECTROMAGNETIC FIELDS RADIATED FROM COMPLEX LIGHTNING CHANNELS
Pogess In Electomagnetics Reseach, PIER 73, 93 105, 2007 COMPUTATIONS OF ELECTROMAGNETIC FIELDS RADIATED FROM COMPLEX LIGHTNING CHANNELS T.-X. Song, Y.-H. Liu, and J.-M. Xiong School of Mechanical Engineeing
More informationDetermining solar characteristics using planetary data
Detemining sola chaacteistics using planetay data Intoduction The Sun is a G-type main sequence sta at the cente of the Sola System aound which the planets, including ou Eath, obit. In this investigation
More informationTwo Dimensional Inertial Flow of a Viscous Fluid in a Corner
Applied Mathematical Sciences, Vol., 207, no. 9, 407-424 HIKARI Ltd, www.m-hikai.com https://doi.og/0.2988/ams.207.62282 Two Dimensional Inetial Flow of a Viscous Fluid in a Cone A. Mahmood and A.M. Siddiqui
More information