Unsteady Rotor-Stator Simulation of the U9 Kaplan Turbine Model
|
|
- Barry Walton
- 5 years ago
- Views:
Transcription
1 Unsteady Rotor-Stator Simulation of the U9 Kaplan Turbine Model Olivier Petit, Håkan Nilsson Chalmers University 6 th OpenFOAM workshop Penn State University, USA June 2011
2 Develop OpenFOAM as the future first choice for industrial CFD in water turbine applications ( validate new implementations useful for Turbomachinery applications) Interact with the experimental project, in order to improve the flow in the U9 model
3 Prototype located in Porjus, consist in a Kaplan turbine. Designed to be able to perform detailed measurements on a real scale turbine/ generator unit. 1:3.1 scale model of the U9 turbine is set up at Vattenfall Research and Development in Älvkarleby. U9 unit, Porjus, Sweden U9 scale model, Älvkarleby, Sweden
4 Create a detailed measurements database that can be used to validate future numerical simulations. Investigate the impact on the flow of the curved pipe at the inlet of the spiral casing.
5 U9 spiral casing: mesh of 5 millions cell, block structured hexaedral, realized with ICEM-HEXA. Y+ value between
6 U9 Runner: mesh of cell, block structured hexaedral, realized with ICEM-HEXA. Y+ value between
7 U9 draft tube: mesh of 1 million cell, block structured hexaedral, realized with ICEM-HEXA. Y+ value between
8 A-A A A
9 At the inlet of the spiral casing, velocity profiles measured with LDA technique at 5 horizontal profiles(py 1-5), and 1 vertical (Pz). Results presented in dimesionless form using R inlet =0.316m, and vbulk=q/ Ainlet, Q=0.71 m.s -1 Comparison between experimental and numerical results are shown for the best efficiency point, Q=0.71 m/s, and alpha=26 (angle of the guide vanes)
10 Chalmers University of Technology
11 Similar behaviour between experimental and numerical results. Difference between numerical and experimental prediction of the flow can be due to the turbulence model: the k-ε model is not accurate enough to give a good prediction of the flow in a curved pipe.
12 SI SII Reference point is at the wall for both windows.
13 The reference point is located on the centreline. Axi-symmetric profile is taken at the inlet from experimental data provided by Berhanu Mulu Inlet boundary conditions
14 P1_a P1_c P3_a P3_c
15 Inlet boundary condition needs to include the unsteadiness of the wakes to predict accurately the flow in the draft tube Radial velocity must be included to get a good approximation of the flow Better turbulence model should predict more accurately the flow features.
16 mesh of 12 million cell, block structured hexaedral, realized with ICEM-HEXA. 7 GGI interfaces, linking different part of the U9 model TransientSimpleDyMFoam, OpenFOAM-1.5-dev, k-ε model Inlet boundary condition: plug flow with Q=0.71 m/s Turbulence parameters calculated so that I=0.1, and νt/ ν=10. CFD tool is OpenFOAM. Pressure and velocity probes are created to monitor the flow in the spiral casing and in the draft tube.
17 Chalmers University of Technology
18 The prediction of the flow before the runner is rather accurate A separation of the flow occurs after the runner blades, pushing the flow against the shroud. The y-plus value needs to be lowered in the runner area.
19 Focus on the U9 runner to get proper y+ value, and proper flow behaviour Pressure, velocity analysis of the whole U9 model and comparison with the measurement data. Thank you for your attention!
Comparison of numerical and experimental results of the flow in the U9 Kaplan turbine model
Home Search Collections Journals About Contact us My IOPscience Comparison of numerical and experimental results of the flow in the U9 Kaplan turbine model This article has been downloaded from IOPscience.
More informationNumerical investigation of the flow in a swirl generator, using OpenFOAM
Applied Mechanics Numerical investigation of the flow in a swirl generator, using OpenFOAM Oscar Bergman 07 June 2010 1 /35 Applied Mechanics Outline Outline Introduction Purpose and goal Experimental
More informationEvaluation of OpenFOAM for CFD of turbulent flow in
!" #$&% ' (*)+,, -. /12 Evaluation of OpenFOAM for CFD of turbulent flow in water turbines Håkan NILSSON Chalmers Univ. of Technology, Göteborg, Sweden hani@chalmers.se Key words: CFD, Validation, Kaplan,
More informationUnsteady Simulations of the Flow in a Swirl Generator, Using OpenFOAM
International Journal of Fluid Machinery and Systems DOI: 10.5293/IJFMS.2011.4.1.199 Vol. 4, No. 1, January-March 2011 ISSN (Online): 1882-9554 Original Paper (Invited) Unsteady Simulations of the Flow
More informationA numerical investigation of tip clearance flow in Kaplan water turbines
Published in the proceedings of HYDROPOWER INTO THE NEXT CENTURY - III, 1999. ISBN 9522642 9 A numerical investigation of tip clearance flow in Kaplan water turbines M.Sc. H. Nilsson Chalmers University
More informationNumerical Simulation of a Complete Francis Turbine including unsteady rotor/stator interactions
Numerical Simulation of a Complete Francis Turbine including unsteady rotor/stator interactions Ruprecht, A., Heitele, M., Helmrich, T. Institute for Fluid Mechanics and Hydraulic Machinery University
More informationCFDOFAIRFLOWINHYDROPOWERGENERATORS FOR CONVECTIVE COOLING, USING OPENFOAM
CFDOFAIRFLOWINHYDROPOWERGENERATORS FOR CONVECTIVE COOLING, USING OPENFOAM ECCOMAS CFD 21 Pirooz Moradnia, Håkan Nilsson Lisbon-Portugal 21-6-16 Pirooz Moradnia, Chalmers/ Applied Mechanics/ Fluid Dynamics
More informationNumerical Prediction Of Torque On Guide Vanes In A Reversible Pump-Turbine
Journal of Multidisciplinary Engineering Science and Technology (JMEST) ISSN: 3159 Vol. 2 Issue 6, June - 215 Numerical Prediction Of Torque On Guide Vanes In A Reversible Pump-Turbine Turbine and pump
More informationNumerical simulation of flow in a high head Francis turbine with prediction of efficiency, rotor
Home Search Collections Journals About Contact us My IOPscience Numerical simulation of flow in a high head Francis turbine with prediction of efficiency, rotor stator interaction and vortex structures
More informationNumerical investigation of the flow in a swirl generator, using OpenFOAM OSCAR BERGMAN. Master s Thesis in Fluid Mechanics
Numerical investigation of the flow in a swirl generator, using OpenFOAM Master s Thesis in Fluid Mechanics OSCAR BERGMAN Department of Applied Mechanics Division of Fluid Mechanics CHALMERS UNIVERSITY
More informationPerformance Prediction of the Francis-99 Hydroturbine with Comparison to Experiment. Chad Custer, PhD Yuvraj Dewan Artem Ivashchenko
Performance Prediction of the Francis-99 Hydroturbine with Comparison to Experiment Chad Custer, PhD Yuvraj Dewan Artem Ivashchenko Unrestricted Siemens AG 2017 Realize innovation. Agenda Introduction
More informationFlow behaviour analysis of reversible pumpturbine in "S" characteristic operating zone
IOP Conference Series: Earth and Environmental Science Flow behaviour analysis of reversible pumpturbine in "S" characteristic operating zone To cite this article: S Q Zhang et al 2012 IOP Conf. Ser.:
More informationStudies of the ERCOFTAC Centrifugal Pump with OpenFOAM
Studies of the ERCOFTAC Centrifugal Pump with OpenFOAM Master s Thesis in Fluid Dynamics SHASHA XIE Department of Applied Mechanics Division of Fluid Dynamics CHALMERS UNIVERSITY OF TECHNOLOGY Göteborg,
More informationDraft Tube calculations using OpenFOAM-1.5dev and validation with FLINDT data
6th OpenFOAM Workshop, June 13-16 2011, PennState University, USA Draft Tube calculations using OpenFOAM-1.5dev and validation with FLINDT data C. Devals, Y. Zhang and F.Guibault École Polytechnique de
More informationOpenFOAM SIMULATION OF THE FLOW IN THE HÖLLEFORSEN DRAFT TUBE MODEL
Turbine-99 III Proceedings of the third IAHR/ERCOFTAC workshop on draft tube flow 8-9 December 2005, Porjus, Sweden Paper No. 8 OpenFOAM SIMULATION OF THE FLOW IN THE HÖLLEFORSEN DRAFT TUBE MODEL Nilsson
More informationProper Orthogonal Decomposition of Pressure Fields in a Draft Tube Cone of the Francis (Tokke) Turbine Model
Journal of Physics: Conference Series OPEN ACCESS Proper Orthogonal Decomposition of Pressure Fields in a Draft Tube Cone of the Francis (Tokke) Turbine Model To cite this article: D Stefan and P Rudolf
More informationSteady state operation simulation of the Francis- 99 turbine by means of advanced turbulence models
Journal of Physics: Conference Series PAPER OPEN ACCESS Steady state operation simulation of the Francis- 99 turbine by means of advanced turbulence models To cite this article: A Gavrilov et al 2017 J.
More informationstudies Maryse Page Hydro-Québec, Research Institute Håkan Nilsson Chalmers University of Technology Omar Bounous Chalmers University of Technology
OpenFOAM Turbomachinery Working Group: ERCOFTAC conical diffuser case-studies studies Maryse Page Hydro-Québec, Research Institute Olivier Petit Chalmers University of Technology Håkan Nilsson Chalmers
More informationThe influence of disc friction losses and labyrinth losses on efficiency of high head Francis turbine
Journal of Physics: Conference Series OPEN ACCESS The influence of disc friction losses and labyrinth losses on efficiency of high head Francis turbine To cite this article: D eli and H Ondráka 2015 J.
More informationCFDOFAIRFLOWINHYDROPOWERGENERATORS
CFDOFAIRFLOWINHYDROPOWERGENERATORS Pirooz Moradnia Göteborg-Sweden 1-1-17 Pirooz Moradnia, Chalmers/ Applied Mechanics/ Fluid Dynamics 1/3 Problem Definition Half of the electricity generation in Sweden
More informationA validation of parallel multiblock CFD against the GAMM Francis water turbine runner at best efficiency and off-design operating conditions
Publication 1/2 A validation of parallel multiblock CFD against the GAMM Francis water turbine runner at best efficiency and off-design operating conditions Håkan Nilsson and Lars Davidson Department of
More informationIntroduction to Fluid Machines, and Compressible Flow Prof. S. K. Som Department of Mechanical Engineering Indian Institute of Technology, Kharagpur
Introduction to Fluid Machines, and Compressible Flow Prof. S. K. Som Department of Mechanical Engineering Indian Institute of Technology, Kharagpur Lecture - 09 Introduction to Reaction Type of Hydraulic
More informationValidation of simulation strategies for the flow in a model propeller turbine during a runaway event
IOP Conference Series: Earth and Environmental Science OPEN ACCESS Validation of simulation strategies for the flow in a model propeller turbine during a runaway event To cite this article: M Fortin et
More informationStratified scavenging in two-stroke engines using OpenFOAM
Stratified scavenging in two-stroke engines using OpenFOAM Håkan Nilsson, Chalmers / Applied Mechanics / Fluid Dynamics 1 Acknowledgements I would like to thank Associate Professor Håkan Nilsson at the
More informationNumerical and Experimental Investigation of the Fan with Cycloidal Rotor
Mechanics and Mechanical Engineering Vol. 22, No. 2 (2018) 447 454 c Lodz University of Technology Numerical and Experimental Investigation of the Fan with Cycloidal Rotor S lawomir Dykas Miros law Majkut
More informationNUMERICAL AND EXPERIMENTAL INVESTIGATION OF H-DARRIEUS VERTICAL AXIS WIND TURBINE.
NUMERICAL AND EXPERIMENTAL INVESTIGATION OF H-DARRIEUS VERTICAL AXIS WIND TURBINE Normunds Jekabsons 1, Sabine Upnere 1, Janis Kleperis 2,3 1 Ventspils University College, Latvia; 2 SIA Multipla Energy,
More informationNumerical simulation of pressure pulsations in Francis turbines
IOP Conference Series: Earth and Environmental Science Numerical simulation of pressure pulsations in Francis turbines To cite this article: M V Magnoli and R Schilling 2012 IOP Conf. Ser.: Earth Environ.
More informationNumerical Estimation of Torsional Dynamic Coefficients of a Hydraulic Turbine
Numerical Estimation of Torsional Dynamic Coefficients of a Hydraulic Turbine Martin Karlsson, Håkan Nilsson, and Jan-Olov Aidanpää The rotordynamic behavior of a hydraulic turbine is influenced by fluid-rotor
More informationA NEW METHOD FOR PREDICITING THE PERFORAMNCE MAP OF A SINGLE STAGE OF A CENTRIFUGAL COMPRESSOR
Proceedings of the 1st Global Power and Propulsion Forum GPPF 2017 Jan 16-18, 2014, Zurich, Switzerland www.pps.global GPPF-2017-119 A NEW METHOD FOR PREDICITING THE PERFORAMNCE MAP OF A SINGLE STAGE OF
More informationResearch Article Numerical Estimation of Torsional Dynamic Coefficients of a Hydraulic Turbine
Rotating Machinery Volume 2009, Article ID 349397, 7 pages doi:10.1155/2009/349397 Research Article Numerical Estimation of Torsional Dynamic Coefficients of a Hydraulic Turbine Martin Karlsson, 1 Håkan
More informationExperimental Investigation of a High Head Model Francis Turbine During Steady-State Operation at Off-Design Conditions
IOP Conference Series: Earth and Environmental Science PAPER OPEN ACCESS Experimental Investigation of a High Head Model Francis Turbine During Steady-State Operation at Off-Design Conditions To cite this
More informationNumerical and Experimental Investigation of the Flow in a Centrifugal Pump Stage
Numerical and Experimental Investigation of the Flow in a Centrifugal Pump Stage FRIEDRICH-KARL BENRA, HANS JOSEF DOHMEN Faculty of Engineering Sciences Department of Mechanical Engineering, Turbomachinery
More informationRANS COMPUTATIONS OF A CAVITATING VORTEX ROPE AT FULL LOAD
6 th IAHR International Meeting of the Workgroup on Cavitation and Dynamic Problems in Hydraulic Machinery and Systems, September 9-11, 2015, Ljubljana, Slovenia RANS COMPUTATIONS OF A CAVITATING VORTEX
More informationOn the performance of a high head Francis turbine at design and off-design conditions
Journal of Physics: onference Series OPEN AESS On the performance of a high head Francis turbine at design and off-design conditions To cite this article: B Aakti et al 15 J. Phys.: onf. Ser. 579 11 View
More informationCFD approach for design optimization and validation for axial flow hydraulic turbine
Indian Journal of Engineering & Materials Sciences Vol. 16, August 009, pp. 9-36 CFD approach for design optimization and validation for axial flow hydraulic turbine Vishnu Prasad, V K Gahlot* & P Krishnamachar
More informationExperimental Analysis of Rotor-Stator Interaction in a Pump-
1 (16) Experimental Analysis of Rotor-Stator Interaction in a Pump- Turbine Gabriel Dan CIOCAN* Institut National Polytechnique de Grenoble, France GabrielDan.Ciocan@orange.fr Jean Louis KUENY Institut
More informationFluid structure interaction dynamic analysis of a mixed-flow waterjet pump
IOP Conference Series: Materials Science and Engineering OPEN ACCESS Fluid structure interaction dynamic analysis of a mixed-flow waterjet pump To cite this article: X W Pan et al 2013 IOP Conf. Ser.:
More informationON THE HUB-TO-SHROUD RATIO OF AN AXIAL EXPANSION TURBINE FOR ENERGY RECOVERY
6 th IAH International Meeting of the Workgroup on Cavitation and Dynamic Problems in Hydraulic Machinery and Systems, September 9-11, 2015, Ljubljana, Slovenia ON THE HUB-TO-SHOUD ATIO OF AN AXIAL EXPANSION
More informationDYNAMIC STRESS MEASUREMENT OF CENTRIFUGAL COMPRESSOR IMPELLER AND STUDY FOR STRENGTH CRITERIA BASED ON CORRELATION BY UNSTEADY CFD
DYNAMIC STRESS MEASUREMENT OF CENTRIFUGAL COMPRESSOR IMPELLER AND STUDY FOR STRENGTH CRITERIA BASED ON CORRELATION BY UNSTEADY CFD by Atsushi Higashio Senior Engineer Hiroyuki Yamashita Research Engineer
More informationFactorial Design Applied to CFD
Michel J. Cervantes Michel.Cervantes@ltu.se T. Fredrik Engström Fredrik.Engstrom@ltu.se Division of Fluid Mechanics, Luleå University of Technology, SE-97187 Luleå, Sweden Factorial Design Applied to CFD
More informationTHERMAL ANALYSIS OF SECOND STAGE GAS TURBINE ROTOR BLADE
Polymers Research Journal ISSN: 195-50 Volume 6, Number 01 Nova Science Publishers, Inc. THERMAL ANALYSIS OF SECOND STAGE GAS TURBINE ROTOR BLADE E. Poursaeidi, M. Mohammadi and S. S. Khamesi University
More informationWicket gate trailing-edge blowing: A method for improving off-design hydroturbine performance by adjusting the runner inlet swirl angle
IOP Conference Series: Earth and Environmental Science OPEN ACCESS Wicket gate trailing-edge blowing: A method for improving off-design hydroturbine performance by adjusting the runner inlet swirl angle
More informationEfficient runner safety assessment during early design phase and root cause analysis
IOP Conference Series: Earth and Environmental Science Efficient runner safety assessment during early design phase and root cause analysis To cite this article: Q W Liang et al 2012 IOP Conf. Ser.: Earth
More informationKeywords: Centrifugal pumps, CFD, flow analysis, numerical simulation, radial gab, part load performance.
IJESRT INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY Analysis of Centrifugal Pump in Diffuser Vane By Using CFD Dr. V.R.Sivakumar *1, Mr.Satheesh Kumar 2, Jacob Mathews 3 *1 Professor
More informationAnalysis of Rotor-Stator Interaction in Turbine Mode of a Pump-Turbine Model
Journal of Applied Fluid Mechanics, Vol. 9, No. 5, pp. 2559-2568, 2016. Available online at www.jafmonline.net, ISSN 1735-3572, EISSN 1735-3645. DOI: 10.18869/acadpub.jafm.68.236.25086 Analysis of Rotor-Stator
More informationEfficiency improvement and evaluation of a centrifugal pump with vaned diffuser
Research Article Efficiency improvement and evaluation of a centrifugal pump with vaned diffuser Advances in Mechanical Engineering 2019, Vol. 11(3) 1 12 Ó The Author(s) 2019 DOI: 10.1177/1687814019825904
More informationHigh head pump-turbine: Pumping mode numerical simulations with a cavitation model for off-design conditions
IOP Conference Series: Earth and Environmental Science OPEN ACCESS High head pump-turbine: Pumping mode numerical simulations with a cavitation model for off-design conditions To cite this article: U Jese
More informationA two-dimensional design method for the hydraulic turbine runner and its preliminary validation
A two-dimensional design method for the hydraulic turbine runner and its preliminary validation Zbigniew Krzemianowski 1 *, Adam Adamkowski 1, Marzena Banaszek 2 ISROMAC 2016 International Symposium on
More informationLeakage flow simulation in a specific pump model
IOP Conference Series: Earth and Environmental Science OPEN ACCESS Leakage flow simulation in a specific pump model To cite this article: P Dupont et al 2014 IOP Conf. Ser.: Earth Environ. Sci. 22 012012
More informationConjugate Heat Transfer Simulation of Internally Cooled Gas Turbine Vane
Conjugate Heat Transfer Simulation of Internally Cooled Gas Turbine Vane V. Esfahanian 1, A. Shahbazi 1 and G. Ahmadi 2 1 Department of Mechanical Engineering, University of Tehran, Tehran, Iran 2 Department
More informationAerodynamic Design and Performance Assessment of a Centripetal-Flow Fan
Journal of Applied Fluid Mechanics, Vol. 10, No. 5, pp. 1343-1353, 2017. Available online at www.jafmonline.net, ISSN 1735-3572, EISSN 1735-3645. DOI: 10.18869/acadpub.jafm.73.242.27582 Aerodynamic Design
More informationCAVITATION PREDICTION IN A KAPLAN TURBINE USING STANDARD AND OPTIMIZED MODEL PARAMETERS
6 th IAHR International Meeting of the Workgroup on Cavitation and Dynamic Problems in Hydraulic Machinery and Systems, September 9-11, 2015, Ljubljana, Slovenia CAVITATION PREDICTION IN A KAPLAN TURBINE
More informationMASTER'S THESIS. CFD Validation of Pressure Fluctuations in a Pump Turbine. Alf Gunnar Backman. Luleå University of Technology
MASTER'S THESIS 2008:017 CIV CFD Validation of Pressure Fluctuations in a Pump Turbine Alf Gunnar Backman Luleå University of Technology MSc Programmes in Engineering Engineering Physics Department of
More informationEFFECT OF DISTRIBUTION OF VOLUMETRIC HEAT GENERATION ON MODERATOR TEMPERATURE DISTRIBUTION
EFFECT OF DISTRIBUTION OF VOLUMETRIC HEAT GENERATION ON MODERATOR TEMPERATURE DISTRIBUTION A. K. Kansal, P. Suryanarayana, N. K. Maheshwari Reactor Engineering Division, Bhabha Atomic Research Centre,
More informationNUMERICAL SIMULATION OF THE UNSTEADY AERODYNAMICS IN AN AXIAL COUNTER-ROTATING FAN STAGE
NUMERICAL SIMULATION OF THE UNSTEADY AERODYNAMICS IN AN AXIAL COUNTER-ROTATING FAN STAGE Younsi M.* and Hutchinson B. *Author for correspondence ANSYS, Inc. 15 place Georges Pompidou 78180 Montigny le
More informationEffect of modification to tongue and basic circle diameter on vibration in a double-suction centrifugal pump
5th International Conference on Information Engineering for Mechanics and Materials (ICIMM 2015) Effect of modification to tongue and basic circle diameter on vibration in a double-suction centrifugal
More informationLARGE EDDY SIMULATION OF FLOW OVER NOZZLE GUIDE VANE OF A TRANSONIC HIGH PRESSURE TURBINE
20 th Annual CFD Symposium, August 09-10, 2018, Bangalore LARGE EDDY SIMULATION OF FLOW OVER NOZZLE GUIDE VANE OF A TRANSONIC HIGH PRESSURE TURBINE Bharathan R D, Manigandan P, Vishal Tandon, Sharad Kapil,
More informationNumerical Analysis of Partial Admission in Axial Turbines. Narmin Baagherzadeh Hushmandi
Numerical Analysis of Partial Admission in Axial Turbines Narmin Baagherzadeh Hushmandi Doctoral Thesis 2010 II Doctoral Thesis Report / Narmin B. Hushmandi 2009 ABSTRACT Numerical analysis of partial
More information1917. Numerical simulation and experimental research of flow-induced noise for centrifugal pumps
1917. Numerical simulation and experimental research of flow-induced noise for centrifugal pumps Xiao-ping Rui 1, Yang Zhao 2 1 College of Resources and Environment, University of Chinese Academy of Sciences,
More informationMODELLING OF SINGLE-PHASE FLOW IN THE STATOR CHANNELS OF SUBMERSIBLE AERATOR
Engineering MECHANICS, Vol. 21, 2014, No. 5, p. 289 298 289 MODELLING OF SINGLE-PHASE FLOW IN THE STATOR CHANNELS OF SUBMERSIBLE AERATOR Martin Bílek*, Jaroslav Štigler* The paper deals with the design
More informationNumerical calculation for cavitation flow of inducer
IOP Conference Series: Materials Science and Engineering OPEN ACCESS Numerical calculation for cavitation flow of inducer To cite this article: C Ning et al 2015 IOP Conf. Ser.: Mater. Sci. Eng. 72 032025
More informationExperimental investigation of the draft tube inlet flow of a bulb turbine
IOP Conference Series: Earth and Environmental Science OPEN ACCESS Experimental investigation of the draft tube inlet flow of a bulb turbine To cite this article: J Vuillemard et al 2014 IOP Conf. Ser.:
More informationGPPS NUMERICAL PREDICTION OF UNSTEADY ENDWALL FLOW AND HEAT TRANSFER WITH ONCOMING WAKE
Proceedings of Shanghai 17 Global Power and Propulsion Forum 3 th October 1 st November, 17 http://www.gpps.global GPPS-17-133 NUMERICAL PREDICTION OF UNSTEADY ENDWALL FLOW AND HEAT TRANSFER WITH ONCOMING
More informationPressure fluctuation prediction in pump mode using large eddy simulation and unsteady Reynolds-averaged Navier Stokes in a pump turbine
Special Issue Article Pressure fluctuation prediction in pump mode using large eddy simulation and unsteady Reynolds-averaged Navier Stokes in a pump turbine Advances in Mechanical Engineering 2016, Vol.
More informationCFD with OpenSource software
CFD with OpenSource software The Harmonic Balance Method in foam-extend Gregor Cvijetić Supervisor: Hrvoje Jasak Faculty of Mechanical Engineering and Naval Architecture University of Zagreb gregor.cvijetic@fsb.hr
More informationStudy of Flow Patterns in Radial and Back Swept Turbine Rotor under Design and Off-Design Conditions
Journal of Applied Fluid Mechanics, Vol. 9, No. 4, pp. 1791-1798, 2016. Available online at www.jafmonline.net, ISSN 1735-3572, EISSN 1735-3645. DOI: 10.18869/acadpub.jafm.68.235.24206 Study of Flow Patterns
More informationANALYSIS OF THE GAMM FRANCIS TURBINE DISTRIBUTOR 3D FLOW FOR THE WHOLE OPERATING RANGE AND OPTIMIZATION OF THE GUIDE VANE AXIS LOCATION
Scientific Bulletin of the Politehnica University of Timisoara Transactions on Mechanics Special issue The 6 th International Conference on Hydraulic Machinery and Hydrodynamics Timisoara, Romania, October
More informationTurbulence-resolving Simulations of Swirling Flows
THESIS FOR THE DEGREE OF DOCTOR OF PHILOSOPHY IN THERMO AND FLUID DYNAMICS Turbulence-resolving Simulations of Swirling Flows by ARDALAN JAVADI Department of Applied Mechanics Division of Fluid Dynamics
More informationmywbut.com Hydraulic Turbines
Hydraulic Turbines Hydro-electric power accounts for up to 0% of the world s electrical generation. Hydraulic turbines come in a variety of shapes determined by the available head and a number of sizes
More informationLeakage Flow Influence on SHF pump model performances
International Journal of Fluid Machinery and Systems DOI: 10.5293/IJFMS.2015.8.4.274 Vol. 8, No. 4, October-December 2015 ISSN (Online): 1882-9554 Original Paper Leakage Flow Influence on SHF pump model
More informationExperimental investigation on a high head model Francis turbine during load rejection
IOP Conference Series: Earth and Environmental Science PAPER OPEN ACCESS Experimental investigation on a high head model Francis turbine during load rejection To cite this article: R Goyal et al 2016 IOP
More informationExperimental and Numerical Studies on Aerodynamic Performance of a Single Turbine Stage with Purge Air Ingestion
Proceedings of International Gas Turbine Congress 2015 Tokyo November 15-20, 2015, Tokyo, Japan Experimental and Numerical Studies on Aerodynamic Performance of a Single Turbine Stage with Purge Air Ingestion
More informationMixing-Plane Method for Flutter Computation in Multi-stage Turbomachines
47th AIAA Aerospace Sciences Meeting Including The New Horizons Forum and Aerospace Exposition 5-8 January 2009, Orlando, Florida AIAA 2009-862 Mixing-Plane Method for Flutter Computation in Multi-stage
More informationSteady and unsteady flow computation in an elbow dr aft tube with experimental validation
IOP Conference Series: Earth and Environmental Science Steady and unsteady flow computation in an elbow dr aft tube with experimental validation To cite this article: T C Vu et al 2010 IOP Conf. Ser.:
More informationParticles Removal from a Moving Tube by Blowing Systems: A CFD Analysis
Engineering, 2013, 5, 268-276 http://dx.doi.org/10.4236/eng.2013.53037 Published Online March 2013 (http://www.scirp.org/journal/eng) Particles Removal from a Moving Tube by Blowing Systems: A CFD Analysis
More informationPerformance of a Vertical Axis Wind Turbine under Accelerating and Decelerating Flows
Available online at www.sciencedirect.com Procedia CIRP 00 (2013) 000 000 www.elsevier.com/locate/procedia 2 nd International Through-life Engineering Services Conference Performance of a Vertical Axis
More informationFinite Element Method for Turbomachinery Flows
SOCRATES Teaching Staff Mobility Program 2000-2001 DMA-URLS Finite Element Method for Turbomachinery Flows Numerical studies on axial flow fan rotor aerodynamics Alessandro Corsini Dipartimento di Meccanica
More informationINTERNATIONAL JOURNAL OF MECHANICAL ENGINEERING AND TECHNOLOGY (IJMET)
INTERNATIONAL JOURNAL OF MECHANICAL ENGINEERING AND TECHNOLOGY (IJMET) International Journal of Mechanical Engineering and Technology (IJMET), ISSN 0976 ISSN 0976 6340 (Print) ISSN 0976 6359 (Online) Volume
More informationCDF CALCULATION OF RADIAL FAN STAGE WITH VARIABLE LENGTH OF SEMI BLADES SVOČ FST 2012
CDF CALCULATION OF RADIAL FAN STAGE WITH VARIABLE LENGTH OF SEMI BLADES SVOČ FST 2012 Ing. Roman Gášpár, Západočeská univerzita v Plzni, Univerzitní 8, 306 14 Plzeň Česká republika NOMENCLATURE A area
More informationComputations of unsteady cavitating flow on wing profiles using a volume fraction method and mass transfer models
Computations of unsteady cavitating flow on wing profiles using a volume fraction method and mass transfer models Tobias Huuva *, Aurelia Cure, Göran Bark * and Håkan Nilsson * Chalmers University of Technology,
More informationNumerical Investigations of Swirling Flow in a Conical Diffuser
1 (11) Numerical Investigations of Swirling Flow in a Conical Diffuser Author Firm / Institution City, Country Lecturer (x) Walter Gyllenram Håkan Nilsson Abstract Division of Thermo and Fluid Dynamics,
More informationLOSS GENERATION IN RADIAL OUTFLOW STEAM TURBINE CASCADES
Paper ID: ETC217-39 Proceedings of 12th European Conference on Turbomachinery Fluid dynamics & Thermodynamics ETC12, April 3-7, 217; Stockholm, Sweden LOSS GENERATION IN RADIAL OUTFLOW STEAM TURBINE CASCADES
More informationMicro-Scale CFD Modeling of Packed-Beds
Micro-Scale CFD Modeling of Packed-Beds Daniel P. Combest and Dr. P.A. Ramachandran and Dr. M.P. Dudukovic Chemical Reaction Engineering Laboratory (CREL) Department of Energy, Environmental, and Chemical
More informationGTINDIA CFD ANALYSIS TO UNDERSTAND THE FLOW BEHAVIOUR OF A SINGLE STAGE TRANSONIC AXIAL FLOW COMPRESSOR. 1 Copyright 2013 by ASME
Proceedings of ASME GTINDIA 203 ASME 203 GAS TURBINE INDIA CONFERENCE DECEMBER 5-6, 203, BANGALORE, KARNATAKA, INDIA GTINDIA203-3592 CFD ANALYSIS TO UNDERSTAND THE FLOW BEHAVIOUR OF A SINGLE STAGE TRANSONIC
More informationIMPLEMENTATION OF PRESSURE BASED SOLVER FOR SU2. 3rd SU2 Developers Meet Akshay.K.R, Huseyin Ozdemir, Edwin van der Weide
IMPLEMENTATION OF PRESSURE BASED SOLVER FOR SU2 3rd SU2 Developers Meet Akshay.K.R, Huseyin Ozdemir, Edwin van der Weide Content ECN part of TNO SU2 applications at ECN Incompressible flow solver Pressure-based
More informationHydraulic Turbines. Table 6.1 Parameters of hydraulic turbines. Power P (kw) Speed N (rpm)
6 Hydraulic Turbines Problem 1 There are 10 solved examples and 7 exercise problems (exclude Problems 1, 2, and 10) in this chapter. Prepare a table to mention the values of all the parameters, such as
More informationCFD configurations for hydraulic turbine startup
IOP Conference Series: Earth and Environmental Science OPEN ACCESS CFD configurations for hydraulic turbine startup To cite this article: J Nicolle et al 214 IOP Conf. Ser.: Earth Environ. Sci. 22 3221
More informationLEAKAGE AND DYNAMIC FORCE COEFFICIENTS FOR TWO LABYRINTH GAS SEALS:
Proceedings of ASME Turbo Expo 2018: Turbine Technical Conference and Exposition, June 11-15, 2018, Oslo, Norway Paper GT2018-75205 LEAKAGE AND DYNAMIC FORCE COEFFICIENTS FOR TWO LABYRINTH GAS SEALS: Teeth-on-Stator
More informationOptical PIV and LDV Comparisons of Internal Flow Investigations in SHF Impeller
Rotating Machinery Volume 26, Article ID 69521, Pages 1 9 DI 1155/IJRM/26/69521 ptical and LDV Comparisons of Internal Flow Investigations in SHF Impeller G. Wuibaut, 1 G. Bois, 1 M. El Hajem, 2 A. Akhras,
More informationEFFECT ON THE AERODYNAMIC FORCING IN AN AXIAL TURBINE STAGE ON VARYING STATOR BLADE SHAPE
28 TH INTERNATIONAL CONGRESS OF THE AERONAUTICAL SCIENCES EFFECT ON THE AERODYNAMIC FORCING IN AN AXIAL TURBINE STAGE ON VARYING STATOR BLADE SHAPE Hassan. S*, Corporella. M**,Robertson. M***, Zhuang.
More informationFluid Mechanics Answer Key of Objective & Conventional Questions
019 MPROVEMENT Mechanical Engineering Fluid Mechanics Answer Key of Objective & Conventional Questions 1 Fluid Properties 1. (c). (b) 3. (c) 4. (576) 5. (3.61)(3.50 to 3.75) 6. (0.058)(0.05 to 0.06) 7.
More informationForced Response Excitation due to Stagger Angle Variation in a Multi-Stage Axial Turbine
International Journal of Gas Turbine, Propulsion and Power Systems October 217, Volume 9, Number 3 Forced Response Excitation due to Stagger Angle Variation in a Multi-Stage Axial Turbine Thomas Hauptmann
More informationEffect of the Computational Domain Selection on the Calculation of Axial Fan Performance
Effect of the Computational Domain Selection on the Calculation of Axial Fan Performance Ayhan Nazmi İlikan 1 *, Erkan Ayder 2 ISROMAC 2016 International Symposium on Transport Phenomena and Dynamics of
More informationFLOW PATTERN STUDY OF A CENTRIFUGAL PUMP USING CFD METHODS CONCENTRATING ON VOLUTE TONGUE ROLE
FLOW PATTERN STUDY OF A CENTRIFUGAL PUMP USING CFD METHODS CONCENTRATING ON VOLUTE TONGUE ROLE N. Pourmahmoud and S. Majid Taleby Faculty of Engineering, Urmia University, Urmia, Iran E-Mail: majid.taleby@gmail.com
More informationDirect Numerical Simulations of Transitional Flow in Turbomachinery
Direct Numerical Simulations of Transitional Flow in Turbomachinery J.G. Wissink and W. Rodi Institute for Hydromechanics University of Karlsruhe Unsteady transitional flow over turbine blades Periodic
More informationParallel Computations of Unsteady Three-Dimensional Flows in a High Pressure Turbine
Parallel Computations of Unsteady Three-Dimensional Flows in a High Pressure Turbine Dongil Chang and Stavros Tavoularis Department of Mechanical Engineering, University of Ottawa, Ottawa, ON Canada Stavros.Tavoularis@uottawa.ca
More informationApplications of Harmonic Balance Method in Periodic Flows Gregor Cvijetić and Inno Gatin
Applications of Harmonic Balance Method in Periodic Flows Gregor Cvijetić and Inno Gatin Faculty of Mechanical Engineering and Naval Architecture, Zagreb 10000, Croatia, gregor.cvijetic@gmail.com The Harmonic
More informationGT NUMERICAL COMPUTATION OF THE JET IMPINGEMENT COOLING OF HIGH PRESSURE RATIO COMPRESSORS
Proceedings of ASME Turbo Expo 2013 GT2013 June 3-7, 2013, San Antonio, Texas, USA GT2013-94949 NUMERICAL COMPUTATION OF THE JET IMPINGEMENT COOLING OF HIGH PRESSURE RATIO COMPRESSORS Elmar Gröschel ABB
More informationSimulation of the Francis-99 Hydro Turbine During Steady and Transient Operation
International Conference on Recent Trends in Physics 26 (ICRTP26) Journal of Physics: Conference Series 755 (26) doi:.88/742-6596/755// Simulation of the Francis-99 Hydro Turbine During Steady and Transient
More informationNumerical analysis of a measured efficiency hysteresis on a bulb turbine model
IOP Conference Series: Earth and Environmental Science OPEN ACCESS Numerical analysis of a measured efficiency hysteresis on a bulb turbine model To cite this article: S Houde et al 2014 IOP Conf. Ser.:
More information