GLASGOW 2003 INTEGRATING CFD AND EXPERIMENT
|
|
- Elisabeth Walton
- 5 years ago
- Views:
Transcription
1 GLASGOW 2003 INTEGRATING CFD AND EXPERIMENT A Detailed CFD and Experimental Investigation of a Benchmark Turbulent Backward Facing Step Flow Stephen Hall & Tracie Barber University of New South Wales Sydney, Australia
2 INTRODUCTION Turbulent Backward Facing Step benchmark flow Compare Particle Image Velocimetry (PIV) and CFD Not just to check CFD Rather to use the best of each What is the best of each? first steps
3 TURBULENT BACKWARD FACING STEP Mean flow structures Characteristic lines and points Wide velocity, turbulence range Good CFD and PIV test Channel flow u=f(y) t Top surface Top boundary layer Ss(x,y) Second vortex u b y Ys (0,0) Primary vortex x Xs Primary Secondary interface Sp(x,y) Shear layer Bottom surface Reverse boundary layer Xr Dividing streamline Core flow u=0 stagnation Xr Outer layer Inner layer Recovery layer
4 EXPERIMENTAL TEST RIG Dimensions and PIV access PIV Nd:YAG Laser Laser light sheet Light Delivery System Scatters y SIDE VIEW (0,0,0) Cross sectional plane x (0,0,0) x Bell inlet Inlet duct Transition z xy planes Dimensions mm Inlet channel Expansion channel TOP VIEW PIV CCD camera and lens
5 EXPERIMENTAL TEST RIG Clear acrylic light access Low reflection base Full side view
6 EXPERIMENTAL TEST RIG High density PIV seeding critical Particle hollow polymer spheres Venturi jet seeder well upstream
7 HIGH RESOLUTION PIV Basic 2D arrangement Mean flow aligned in light sheet Camera perpendicular to light sheet Light Source Light Delivery Light Scattering Particles y Seeding Camera z Lens x Measurement Region Flow Light Sheet
8 HIGH RESOLUTION PIV
9 HIGH RESOLUTION PIV Constant intensity light sheet Adjustable width and thickness
10 PIV VERIFICATION USING CFD Contours From Standard PIV Images of Okamoto and Watanabe (1999) Contours From a PIV Analysis of the Standard PIV Images
11 PURPOSE OF CFD Not only to validate CFD against experiment But to reveal greater detail about phenomena And supplement experimental results Make full use of the reliability of modern CFD
12 CFD APPROACH 2D RANS finite volume (Fluent) RNG k, RSM turbulence closure (literature) Second order interpolation Ambient and boundary conditions use experimental
13 CFD VERIFICATION ASSESSMENT Key functionals Xr, Xs, Ys, Sp, Ss, Lift, Drag Grid convergence literature 200 cells vertical Iterative convergence 3D vs 2D same grid resolution 3% on Xr Turbulence modeling, is code correct? commercial code
14 CFD AND PIV COMPARISON Many quality CFD and Experimental data sets Most missing complete boundary conditions not previously required Perform both CFD and PIV myself exactly equivalent Work in raw variables u, v, Vmag less need to non dimensionalise Contours variation Streamlines direction
15 MEAN VELOCITY MAGNITUDE Velocity Mag. in CS Plane, (top) PIV, (mid.) RNG k, (bot.) RSM
16 STREAMLINES Streamlines in CS Plane, (top) PIV, (mid.) RNG k, (bot.) RSM
17 U HORIZONTAL VELOCITY Mean Horizontal Velocity in CS Plane, (top) PIV, (mid.) RNG k, (bot.) RSM
18 V VERTICAL VELOCITY Mean Vertical Velocity in CS Plane, (top) PIV, (mid.) RNG k, (bot.) RSM
19 VORTICITY Vorticity Mag. in CS Plane, (top) PIV, (mid.) RNG k, (bot.) RSM
20 VELOCITY MAGNITUDE AND STREAMLINES BEHIND STEP Characteristic Lines in CS Plane, (top) PIV, (mid.) RNG k, (bot.) RSM
21 FOCUSED BEHIND STEP Mean Velocities in CS Plane, (left) PIV, (right) RSM t p =70 µs
22 FOCUSED BEHIND STEP Streamlines in CS Plane, (left) PIV, (right) RSM, t p =70 µs
23 CONCLUSIONS CFD and PIV reveal detailed flow structure Exactly Equivalent simultaneous CFD and PIV Highlights limitations in each Improves confidence in results Essential complimentary techniques
24 FUTURE DIRECTIONS CFD should be first part of any PIV? Unsteady 3D CFD PIV (TR PIV, stereoscopic) Total integration of CFD PIV PIV modifies turbulence closure model throughout CFD error checks PIV and fills in error regions mathematically rigorous
25 PLANES OF INTEREST Inlet Line Inlet Profile Cross Sectional Plane y= Inlet Plane x= 100 Step z y (0,0,0) x Bottom Surface Outlet Plane x= 400 z= z= 0
26 HIGH RESOLUTION PIV Basic sub systems Optimise performance of each Light Source Light Encoding Light Delivery Flow Seeding t Post Processing Filtering Distortion Correction Mapping Image Statistical Analysis Processing Image Trimming Cross correlation Error Checking Storage Control Analysis Light Scattering Particles Light Conditioning Recording
27
Turbulencja w mikrokanale i jej wpływ na proces emulsyfikacji
Polish Academy of Sciences Institute of Fundamental Technological Research Turbulencja w mikrokanale i jej wpływ na proces emulsyfikacji S. Błoński, P.Korczyk, T.A. Kowalewski PRESENTATION OUTLINE 0 Introduction
More information9.9 Coherent Structure Detection in a Backward-Facing Step Flow
9.9 Coherent Structure Detection in a Backward-Facing Step Flow Contributed by: C. Schram, P. Rambaud, M. L. Riethmuller 9.9.1 Introduction An algorithm has been developed to automatically detect and characterize
More informationCFD Analysis of 2-D Unsteady Flow Past a Square Cylinder at an Angle of Incidence
CFD Analysis of 2-D Unsteady Flow Past a Square Cylinder at an Angle of Incidence Kavya H.P, Banjara Kotresha 2, Kishan Naik 3 Dept. of Studies in Mechanical Engineering, University BDT College of Engineering,
More informationAn Experimental and Computational Investigation of a 3D, l/h=5 Transonic Cavity Flow. Prof Kevin Knowles Dr Simon Ritchie Dr Nick Lawson
An Experimental and Computational Investigation of a 3D, l/h=5 Transonic Cavity Flow Prof Kevin Knowles Dr Simon Ritchie Dr Nick Lawson Overview Background Experimental Studies Computational Studies Results
More informationParticle Image Velocimetry for Fluid Dynamics Measurements
Particle Image Velocimetry for Fluid Dynamics Measurements Lyes KADEM, Ph.D; Eng kadem@encs.concordia.ca Laboratory for Cardiovascular Fluid Dynamics MIE Concordia University Presentation - A bit of history
More informationExperimental and Numerical Analysis of Near Wall Flow at the Intake Valve and its Influence on Large-Scale Fluctuations
Experimental and Numerical Analysis of Near Wall Flow at the Intake Valve and its Influence on Large-Scale Fluctuations Frank Hartmann, Stefan Buhl, Florian Gleiß, Christian Hasse Philipp Barth, Martin
More informationPIV and LDV measurements behind a backward facing step
PIV and LDV measurements behind a backward facing step M.T. Pilloni, C. Schram, M.L. Riethmulle/^ ^ Mechanical Engineering Department, 09123 Cagliari, Italy ^ von Karman Institute for Fluid Dynamics, 1640
More informationComparison Between Numerical & PIV Experimental Results for Gas-Solid Flow in Ducts
Fabio Kasper Comparison Between Numerical & PIV Experimental Results for Gas-Solid Flow in Ducts Rodrigo Decker, Oscar Sgrott Jr., Henry F. Meier Waldir Martignoni Agenda Introduction The Test Bench Case
More informationBackward facing step Homework. Department of Fluid Mechanics. For Personal Use. Budapest University of Technology and Economics. Budapest, 2010 autumn
Backward facing step Homework Department of Fluid Mechanics Budapest University of Technology and Economics Budapest, 2010 autumn Updated: October 26, 2010 CONTENTS i Contents 1 Introduction 1 2 The problem
More informationPARTICLE IMAGE VELOCIMETRY (PIV) AND VOLUMETRIC VELOCIMETRY (V3V) SYSTEMS
PARTICLE IMAGE VELOCIMETRY (PIV) AND VOLUMETRIC VELOCIMETRY (V3V) SYSTEMS VERSATILE, UPGRADEABLE FLUID MECHANICS MEASUREMENT SOLUTIONS UNDERSTANDING, ACCELERATED FULL SPECTRUM OF GLOBAL VELOCITY SYSTEMS
More informationTime-resolved PIV measurements with CAVILUX HF diode laser
Time-resolved PIV measurements with CAVILUX HF diode laser Author: Hannu Eloranta, Pixact Ltd 1 Introduction Particle Image Velocimetry (PIV) is a non-intrusive optical technique to measure instantaneous
More informationFlow Field of Truncated Spherical Turrets
Flow Field of Truncated Spherical Turrets Kevin M. Albarado 1 and Amelia Williams 2 Aerospace Engineering, Auburn University, Auburn, AL, 36849 Truncated spherical turrets are used to house cameras and
More informationSimulation of Turbulent Flow around an Airfoil
1. Purpose Simulation of Turbulent Flow around an Airfoil ENGR:2510 Mechanics of Fluids and Transfer Processes CFD Lab 2 (ANSYS 17.1; Last Updated: Nov. 7, 2016) By Timur Dogan, Michael Conger, Andrew
More informationHydrodynamic Instability and Particle Image Velocimetry
Hydrodynamic Instability and Particle Image Velocimetry Instabilities in lid-driven cavities First important investigations of hydrodynamic instabilities were published by v. Helmholtz (1868), Lord Rayleigh
More informationS-ducts and Nozzles: STAR-CCM+ at the Propulsion Aerodynamics Workshop. Peter Burns, CD-adapco
S-ducts and Nozzles: STAR-CCM+ at the Propulsion Aerodynamics Workshop Peter Burns, CD-adapco Background The Propulsion Aerodynamics Workshop (PAW) has been held twice PAW01: 2012 at the 48 th AIAA JPC
More informationSPC 307 Aerodynamics. Lecture 1. February 10, 2018
SPC 307 Aerodynamics Lecture 1 February 10, 2018 Sep. 18, 2016 1 Course Materials drahmednagib.com 2 COURSE OUTLINE Introduction to Aerodynamics Review on the Fundamentals of Fluid Mechanics Euler and
More informationIntroduction to C omputational F luid Dynamics. D. Murrin
Introduction to C omputational F luid Dynamics D. Murrin Computational fluid dynamics (CFD) is the science of predicting fluid flow, heat transfer, mass transfer, chemical reactions, and related phenomena
More informationModule 3: Velocity Measurement Lecture 14: Analysis of PIV data. The Lecture Contains: Flow Visualization. Test Cell Flow Quality
The Lecture Contains: Flow Visualization Test Cell Flow Quality Influence of End-Plates Introduction To Data Analysis Principle of Operation of PIV Various Aspects of PIV Measurements Recording of the
More informationDeveloping Tools for Assessing Bend-twist Coupled Foils
Developing Tools for Assessing Bend-twist Coupled Foils Laura Marimon Giovannetti, Joseph Banks, Stephen R. Turnock, Stephen W. Boyd, University of Southampton, Southampton/UK, L.Marimon-Giovannetti@soton.ac.uk
More informationVolumetric Velocimetry via Scanning Back-Projection and Least-Squares-Matching Algorithms of a Vortex Ring
Volumetric Velocimetry via Scanning Back-Projection and Least-Squares-Matching Algorithms of a Vortex Ring Benjamin Ponitz 1,*, Mark Sastuba 1, Christoph Brücker 1 and Jens Kitzhofer 2 1: Institute of
More informationTHE INFLUENCE OF ROTATING DOMAIN SIZE IN A ROTATING FRAME OF REFERENCE APPROACH FOR SIMULATION OF ROTATING IMPELLER IN A MIXING VESSEL
Journal of Engineering Science and Technology Vol. 2, No. 2 (2007) 126-138 School of Engineering, Taylor s University College THE INFLUENCE OF ROTATING DOMAIN SIZE IN A ROTATING FRAME OF REFERENCE APPROACH
More informationIntroduction to Computational Fluid Dynamics Mech 122 D. Fabris, K. Lynch, D. Rich
Introduction to Computational Fluid Dynamics Mech 122 D. Fabris, K. Lynch, D. Rich 1 Computational Fluid dynamics Computational fluid dynamics (CFD) is the analysis of systems involving fluid flow, heat
More informationAPPLICATION OF WAVELET VECTOR MULTI-RESOLUTION TECHNIQUE TO PIV MEASUREMENTS
AIAA-- APPLICATION OF WAVELET VECTOR MULTI-RESOLUTION TECNIQUE TO PIV MEASUREMENTS ui LI Department of Mechanical Engineering Kagoshima University --, Korimoto, Kagoshima - JAPAN e-mail: li@mech.kagoshima-u.ac.jp
More informationNUMERICAL SIMULATIONS OF FLOW THROUGH AN S-DUCT
NUMERICAL SIMULATIONS OF FLOW THROUGH AN S-DUCT 1 Pravin Peddiraju, 1 Arthur Papadopoulos, 2 Vangelis Skaperdas, 3 Linda Hedges 1 BETA CAE Systems USA, Inc., USA, 2 BETA CAE Systems SA, Greece, 3 CFD Consultant,
More informationComputational Study of Laminar Flowfield around a Square Cylinder using Ansys Fluent
MEGR 7090-003, Computational Fluid Dynamics :1 7 Spring 2015 Computational Study of Laminar Flowfield around a Square Cylinder using Ansys Fluent Rahul R Upadhyay Master of Science, Dept of Mechanical
More informationINVESTIGATION OF FLOW BEHAVIOR PASSING OVER A CURVETURE STEP WITH AID OF PIV SYSTEM
INVESTIGATION OF FLOW BEHAVIOR PASSING OVER A CURVETURE STEP WITH AID OF PIV SYSTEM Noor Y. Abbas Department of Mechanical Engineering, Al Nahrain University, Baghdad, Iraq E-Mail: noor13131979@gmail.com
More informationModeling Evaporating Liquid Spray
Tutorial 16. Modeling Evaporating Liquid Spray Introduction In this tutorial, FLUENT s air-blast atomizer model is used to predict the behavior of an evaporating methanol spray. Initially, the air flow
More informationSimulation of Turbulent Flow around an Airfoil
Simulation of Turbulent Flow around an Airfoil ENGR:2510 Mechanics of Fluids and Transfer Processes CFD Pre-Lab 2 (ANSYS 17.1; Last Updated: Nov. 7, 2016) By Timur Dogan, Michael Conger, Andrew Opyd, Dong-Hwan
More informationIndustrial applications of image based measurement techniques in aerodynamics: problems, progress and future needs
Industrial applications of image based measurement techniques in aerodynamics: problems, progress and future needs Jürgen Kompenhans 1 Department Experimental Methods, Institute of Aerodynamics and Flow
More informationHigh-Lift Aerodynamics: STAR-CCM+ Applied to AIAA HiLiftWS1 D. Snyder
High-Lift Aerodynamics: STAR-CCM+ Applied to AIAA HiLiftWS1 D. Snyder Aerospace Application Areas Aerodynamics Subsonic through Hypersonic Aeroacoustics Store release & weapons bay analysis High lift devices
More informationNumerical Study of Turbulent Flow over Backward-Facing Step with Different Turbulence Models
Numerical Study of Turbulent Flow over Backward-Facing Step with Different Turbulence Models D. G. Jehad *,a, G. A. Hashim b, A. K. Zarzoor c and C. S. Nor Azwadi d Department of Thermo-Fluids, Faculty
More informationSimulation of Flow Development in a Pipe
Tutorial 4. Simulation of Flow Development in a Pipe Introduction The purpose of this tutorial is to illustrate the setup and solution of a 3D turbulent fluid flow in a pipe. The pipe networks are common
More informationPulsating flow around a stationary cylinder: An experimental study
Proceedings of the 3rd IASME/WSEAS Int. Conf. on FLUID DYNAMICS & AERODYNAMICS, Corfu, Greece, August 2-22, 2 (pp24-244) Pulsating flow around a stationary cylinder: An experimental study A. DOUNI & D.
More informationThe Spalart Allmaras turbulence model
The Spalart Allmaras turbulence model The main equation The Spallart Allmaras turbulence model is a one equation model designed especially for aerospace applications; it solves a modelled transport equation
More informationVerification and Validation of Turbulent Flow around a Clark-Y Airfoil
1 Verification and Validation of Turbulent Flow around a Clark-Y Airfoil 1. Purpose ME:5160 Intermediate Mechanics of Fluids CFD LAB 2 (ANSYS 19.1; Last Updated: Aug. 7, 2018) By Timur Dogan, Michael Conger,
More informationMOMENTUM AND HEAT TRANSPORT INSIDE AND AROUND
MOMENTUM AND HEAT TRANSPORT INSIDE AND AROUND A CYLINDRICAL CAVITY IN CROSS FLOW G. LYDON 1 & H. STAPOUNTZIS 2 1 Informatics Research Unit for Sustainable Engrg., Dept. of Civil Engrg., Univ. College Cork,
More informationA new hybrid slurry CFD model compared with experimental results
12th OpenFOAM Workshop, University of Exeter 24th-27th July 2017 A new hybrid slurry CFD model compared with experimental results Alasdair Mackenzie 1, Vanja Škurić 2, MT Stickland 1, WM Dempster 1 1.
More informationLaser speckle based background oriented schlieren measurements in a fire backlayering front
Laser speckle based background oriented schlieren measurements in a fire backlayering front Philipp Bühlmann 1*, Alexander H. Meier 1, Martin Ehrensperger 1, Thomas Rösgen 1 1: ETH Zürich, Institute of
More informationTHE INTERACTION OF A COLD ATOMISED SPRAY WITH A CIRCULAR CYLINDER
Journal of Engineering Science and Technology Vol. 5, No. 3 (2010) 361-372 School of Engineering, Taylor s University College THE INTERACTION OF A COLD ATOMISED SPRAY WITH A CIRCULAR CYLINDER A. AROUSSI
More informationSIMULATION OF FLOW FIELD AROUND AND INSIDE SCOUR PROTECTION WITH PHYSICAL AND REALISTIC PARTICLE CONFIGURATIONS
XIX International Conference on Water Resources CMWR 2012 University of Illinois at Urbana-Champaign June 17-22, 2012 SIMULATION OF FLOW FIELD AROUND AND INSIDE SCOUR PROTECTION WITH PHYSICAL AND REALISTIC
More informationComparison between Optical Flow and Cross-Correlation Methods for Extraction of Velocity Fields from Particle Images
Comparison between Optical Flow and Cross-Correlation Methods for Extraction of Velocity Fields from Particle Images (Optical Flow vs Cross-Correlation) Tianshu Liu, Ali Merat, M. H. M. Makhmalbaf Claudia
More informationEXPERIMENTAL INVESTIGATION OF THE FLOW PATTERN BEHIND CYLINDER. Ing. Rut Vitkovičová, Ing. Vladislav Skála, Ing. Jan Čížek Ph.D.
EXPERIMENTAL INVESTIGATION OF THE FLOW PATTERN BEHIND CYLINDER Ing. Rut Vitkovičová, Ing. Vladislav Skála, Ing. Jan Čížek Ph.D. Abstract Investigation of the flow behind bluff bodies, especially for cylinder,
More informationExperimental Studies of Flapping-wing Aerodynamics
Experimental Studies of Flapping-wing Aerodynamics N. Phillips Aeromechanical Systems Group Cranfield University Defence Academy of the UK Shrivenham, Swindon, UK SN6 8LA Tel: 01793 78 5271 Fax: 01793
More informationExperimental and Numerical Investigation of Flow Structures around Cylindrical Bluff Bodies
EPJ Web of Conferences 92, 02113 (2015) DOI: 10.1051/ epjconf/ 20159202113 C Owned by the authors, published by EDP Sciences, 2015 Experimental and Numerical Investigation of Flow Structures around Cylindrical
More informationFLOW VISUALISATION OF POLYMER MELT CONTRACTION FLOWS FOR VALIDATION OF NUMERICAL SIMULATIONS
FLOW VISUALISATION OF POLYMER MELT CONTRACTION FLOWS FOR VALIDATION OF NUMERICAL SIMULATIONS R Spares, T Gough, M T Martyn, P Olley and P D Coates IRC in Polymer Science & Technology, Mechanical & Medical
More informationCOMPUTATIONAL FLUID DYNAMICS ANALYSIS OF ORIFICE PLATE METERING SITUATIONS UNDER ABNORMAL CONFIGURATIONS
COMPUTATIONAL FLUID DYNAMICS ANALYSIS OF ORIFICE PLATE METERING SITUATIONS UNDER ABNORMAL CONFIGURATIONS Dr W. Malalasekera Version 3.0 August 2013 1 COMPUTATIONAL FLUID DYNAMICS ANALYSIS OF ORIFICE PLATE
More informationAssessment of Turbulence Models for Flow around a Surface-Mounted Cube
Assessment of Turbulence Models for Flow around a Surface-Mounted Cube Sercan Dogan, Sercan Yagmur, Ilker Goktepeli, and Muammer Ozgoren Selcuk University, Konya, Turkey Email: {sercandogan, syagmur, ilkergoktepeli}@selcuk.edu.tr
More informationDESIGN IMPROVEMENTS OF SIROCCO TYPE FANS BY MEANS OF COMPUTATIONAL FLUID DYNAMICS AND STEREOSCOPIC PARTICLE IMAGE VELOCIMETRY SUMMARY INTRODUCTION
DESIGN IMPROVEMENTS OF SIROCCO TYPE FANS BY MEANS OF COMPUTATIONAL FLUID DYNAMICS AND STEREOSCOPIC PARTICLE IMAGE VELOCIMETRY Stefan FRANK 1, Manoochehr DARVISH 1, Bastian TIETJEN 1 and Adam STUCHLIK 1,2
More informationExtension and Validation of the CFX Cavitation Model for Sheet and Tip Vortex Cavitation on Hydrofoils
Extension and Validation of the CFX Cavitation Model for Sheet and Tip Vortex Cavitation on Hydrofoils C. Lifante, T. Frank, M. Kuntz ANSYS Germany, 83624 Otterfing Conxita.Lifante@ansys.com 2006 ANSYS,
More informationSwapnil Nimse Project 1 Challenge #2
Swapnil Nimse Project 1 Challenge #2 Project Overview: Using Ansys-Fluent, analyze dependency of the steady-state temperature at different parts of the system on the flow velocity at the inlet and buoyancy-driven
More informationAnalysis of the Velocities in the Wake of an Azimuthing Thruster, using PIV Measurements and CFD Calculations
Analysis of the Velocities in the Wake of an Azimuthing Thruster, using PIV Measurements and CFD Calculations Hans Cozijn (MARIN) Rink Hallmann, Arjen Koop Presentation Outline Background and Objectives
More informationAvailable online at ScienceDirect. The 2014 conference of the International Sports Engineering Association.
Available online at www.sciencedirect.com ScienceDirect Procedia Engineering 72 ( 2014 ) 768 773 The 2014 conference of the International Sports Engineering Association Simulation and understanding of
More informationComputational Simulation of the Wind-force on Metal Meshes
16 th Australasian Fluid Mechanics Conference Crown Plaza, Gold Coast, Australia 2-7 December 2007 Computational Simulation of the Wind-force on Metal Meshes Ahmad Sharifian & David R. Buttsworth Faculty
More informationCFD Analysis of a Fully Developed Turbulent Flow in a Pipe with a Constriction and an Obstacle
CFD Analysis of a Fully Developed Turbulent Flow in a Pipe with a Constriction and an Obstacle C, Diyoke Mechanical Engineering Department Enugu State University of Science & Tech. Enugu, Nigeria U, Ngwaka
More informationFlow Visualization around Generic Bridge Shapes using Particle Image Velocimetry
Flow Visualization around Generic Bridge Shapes using Particle Image Velocimetry by Harold Bosch 1 and Kornel Kerenyi 2 ABSTRACT This paper examines the flow field around generic bridge shape models using
More informationLecture # 16: Review for Final Exam
AerE 344 Lecture Notes Lecture # 6: Review for Final Exam Hui Hu Department of Aerospace Engineering, Iowa State University Ames, Iowa 5, U.S.A AerE343L: Dimensional Analysis and Similitude Commonly used
More informationHui Hu Department of Aerospace Engineering, Iowa State University Ames, Iowa 50011, U.S.A
AerE 311L & AerE343L Lecture Notes Lecture # 14: Advanced Particle Image Velocimetry Technique Hui Hu Department of Aerospace Engineering, Iowa State University Ames, Iowa 511, U.S.A Particle-based techniques:
More informationVerification and Validation of Turbulent Flow around a Clark-Y Airfoil
Verification and Validation of Turbulent Flow around a Clark-Y Airfoil 1. Purpose 58:160 Intermediate Mechanics of Fluids CFD LAB 2 By Tao Xing and Fred Stern IIHR-Hydroscience & Engineering The University
More informationDoppler Global Velocimetry: A Potential Velocity Measurement Method for General Aviation Applications
Doppler Global Velocimetry: A Potential Velocity Measurement Method for General Aviation Applications L. Scott Miller The Wichita State University Wichita, Kansas and James F. Meyers, and Jimmy W. Usry
More informationDNV GL s 16th Technology Week
OIL & GAS DNV GL s 16th Technology Week Advanced Simulation for Offshore Application: Application of CFD for Computing VIM of Floating Structures 1 SAFER, SMARTER, GREENER OUTLINE Introduction Elements
More informationACTIVE FLOW CONTROL IN TWIN AIR-INTAKE USING VORTEX GENERATORS JETS
Proceedings of the International Conference on Mechanical Engineering 11 (ICME11) 18- December 11, Dhaka, Bangladesh ICME11-FL-24 ACTIVE FLOW CONTROL IN TWIN AIR-INTAKE USING VORTEX GENERATORS JETS Akshoy
More informationFLOW STRUCTURE AROUND A HORIZONTAL CYLINDER AT DIFFERENT ELEVATIONS IN SHALLOW WATER
FLOW STRUCTURE AROUND A HORIZONTAL CYLINDER AT DIFFERENT ELEVATIONS IN SHALLOW WATER 1 N.Filiz OZDIL, * 2 Huseyin AKILLI 1 Department of Mechanical Engineering, Adana Science and Technology University,
More informationIntroduction to CFX. Workshop 2. Transonic Flow Over a NACA 0012 Airfoil. WS2-1. ANSYS, Inc. Proprietary 2009 ANSYS, Inc. All rights reserved.
Workshop 2 Transonic Flow Over a NACA 0012 Airfoil. Introduction to CFX WS2-1 Goals The purpose of this tutorial is to introduce the user to modelling flow in high speed external aerodynamic applications.
More informationViscous/Potential Flow Coupling Study for Podded Propulsors
First International Symposium on Marine Propulsors smp 09, Trondheim, Norway, June 2009 Viscous/Potential Flow Coupling Study for Podded Propulsors Eren ÖZSU 1, Ali Can TAKİNACI 2, A.Yücel ODABAŞI 3 1
More informationEffect of suction pipe leaning angle and water level on the internal flow of pump sump
IOP Conference Series: Earth and Environmental Science PAPER OPEN ACCESS Effect of suction pipe leaning angle and water level on the internal flow of pump sump To cite this article: Z-M Chen et al 216
More informationPreliminary investigation into two-way fluid structure interaction of heliostat wind loads Josh Wolmarans
Preliminary investigation into two-way fluid structure interaction of heliostat wind loads Josh Wolmarans Supervisor: Prof Ken Craig Clean Energy Research Group (CERG), Department of Mechanical and Aeronautical
More informationSimulation of Laminar Pipe Flows
Simulation of Laminar Pipe Flows 57:020 Mechanics of Fluids and Transport Processes CFD PRELAB 1 By Timur Dogan, Michael Conger, Maysam Mousaviraad, Tao Xing and Fred Stern IIHR-Hydroscience & Engineering
More informationA B C D E. Settings Choose height, H, free stream velocity, U, and fluid (dynamic viscosity and density ) so that: Reynolds number
Individual task Objective To derive the drag coefficient for a 2D object, defined as where D (N/m) is the aerodynamic drag force (per unit length in the third direction) acting on the object. The object
More informationDetached Eddy Simulation Analysis of a Transonic Rocket Booster for Steady & Unsteady Buffet Loads
Detached Eddy Simulation Analysis of a Transonic Rocket Booster for Steady & Unsteady Buffet Loads Matt Knapp Chief Aerodynamicist TLG Aerospace, LLC Presentation Overview Introduction to TLG Aerospace
More informationExperimental analysis of flow in a curved tube using particle image velocimetry
Experimental analysis of flow in a curved tube using particle image velocimetry Nick Jaensson BMTE 1.3 Internship report November 1 Supervisors: prof. dr. ir. F.N. van de Vosse (TU/e) dr. ir. A.C.B. Bogaerds
More information3D Investigation of Seabed Stress Around Subsea Pipelines
3D Investigation of Seabed Stress Around Subsea Pipelines Wenwen Shen Dr Jeremy Leggoe School of Mechanical and Chemical Engineering Terry Griffiths CEED Client: J P Kenny Abstract Field observations on
More informationLecture # 11: Particle image velocimetry
AerE 344 Lecture Notes Lecture # 11: Particle image velocimetry Dr. Hui Hu Dr. Rye M Waldman Department of Aerospace Engineering Iowa State University Ames, Iowa 50011, U.S.A Sources/ Further reading:
More informationParticle Velocimetry Data from COMSOL Model of Micro-channels
Particle Velocimetry Data from COMSOL Model of Micro-channels P.Mahanti *,1, M.Keebaugh 1, N.Weiss 1, P.Jones 1, M.Hayes 1, T.Taylor 1 Arizona State University, Tempe, Arizona *Corresponding author: GWC
More informationComputational Fluid Dynamics (CFD) for Built Environment
Computational Fluid Dynamics (CFD) for Built Environment Seminar 4 (For ASHRAE Members) Date: Sunday 20th March 2016 Time: 18:30-21:00 Venue: Millennium Hotel Sponsored by: ASHRAE Oryx Chapter Dr. Ahmad
More informationMeasurement Principle What is VidPIV? An Overview of the VidPIV Interface Data Management
Measurement Principle What is VidPIV? An Overview of the Data Management Contents General Overview PIV Project 1 2 3 4 Measuring Principle 3 What is VidPIV? 4 An Overview of the 5 Data Management 6 4.1
More informationEstimation of Flow Field & Drag for Aerofoil Wing
Estimation of Flow Field & Drag for Aerofoil Wing Mahantesh. HM 1, Prof. Anand. SN 2 P.G. Student, Dept. of Mechanical Engineering, East Point College of Engineering, Bangalore, Karnataka, India 1 Associate
More informationNon-Newtonian Transitional Flow in an Eccentric Annulus
Tutorial 8. Non-Newtonian Transitional Flow in an Eccentric Annulus Introduction The purpose of this tutorial is to illustrate the setup and solution of a 3D, turbulent flow of a non-newtonian fluid. Turbulent
More informationModeling Evaporating Liquid Spray
Tutorial 17. Modeling Evaporating Liquid Spray Introduction In this tutorial, the air-blast atomizer model in ANSYS FLUENT is used to predict the behavior of an evaporating methanol spray. Initially, the
More informationTHE APPLICATION OF AN ATMOSPHERIC BOUNDARY LAYER TO EVALUATE TRUCK AERODYNAMICS IN CFD
THE APPLICATION OF AN ATMOSPHERIC BOUNDARY LAYER TO EVALUATE TRUCK AERODYNAMICS IN CFD A SOLUTION FOR A REAL-WORLD ENGINEERING PROBLEM Ir. Niek van Dijk DAF Trucks N.V. CONTENTS Scope & Background Theory:
More informationParticle Image Velocimetry Part - 3
AerE 545X class notes #5 Particle Image Velocimetry Part - 3 Hui Hu Department of Aerospace Engineering, Iowa State University Ames, Iowa 50011, U.S.A PIV System Setup Particle tracers: Illumination system:
More informationCFD MODELING FOR PNEUMATIC CONVEYING
CFD MODELING FOR PNEUMATIC CONVEYING Arvind Kumar 1, D.R. Kaushal 2, Navneet Kumar 3 1 Associate Professor YMCAUST, Faridabad 2 Associate Professor, IIT, Delhi 3 Research Scholar IIT, Delhi e-mail: arvindeem@yahoo.co.in
More informationAir Assisted Atomization in Spiral Type Nozzles
ILASS Americas, 25 th Annual Conference on Liquid Atomization and Spray Systems, Pittsburgh, PA, May 2013 Air Assisted Atomization in Spiral Type Nozzles W. Kalata *, K. J. Brown, and R. J. Schick Spray
More informationTutorial 17. Using the Mixture and Eulerian Multiphase Models
Tutorial 17. Using the Mixture and Eulerian Multiphase Models Introduction: This tutorial examines the flow of water and air in a tee junction. First you will solve the problem using the less computationally-intensive
More informationEffect of Position of Wall Mounted Surface Protrusion in Drag Characteristics At Low Reynolds Number
ISSN (e): 2250 3005 Volume, 07 Issue, 11 November 2017 International Journal of Computational Engineering Research (IJCER) Effect of Position of Wall Mounted Surface Protrusion in Drag Characteristics
More informationApplication of Wray-Agarwal Turbulence Model for Accurate Numerical Simulation of Flow Past a Three-Dimensional Wing-body
Washington University in St. Louis Washington University Open Scholarship Mechanical Engineering and Materials Science Independent Study Mechanical Engineering & Materials Science 4-28-2016 Application
More informationTransition Flow and Aeroacoustic Analysis of NACA0018 Satish Kumar B, Fred Mendonç a, Ghuiyeon Kim, Hogeon Kim
Transition Flow and Aeroacoustic Analysis of NACA0018 Satish Kumar B, Fred Mendonç a, Ghuiyeon Kim, Hogeon Kim Transition Flow and Aeroacoustic Analysis of NACA0018 Satish Kumar B, Fred Mendonç a, Ghuiyeon
More informationANSYS AIM Tutorial Turbulent Flow Over a Backward Facing Step
ANSYS AIM Tutorial Turbulent Flow Over a Backward Facing Step Author(s): Sebastian Vecchi, ANSYS Created using ANSYS AIM 18.1 Problem Specification Pre-Analysis & Start Up Governing Equation Start-Up Geometry
More informationMcNair Scholars Research Journal
McNair Scholars Research Journal Volume 2 Article 1 2015 Benchmarking of Computational Models against Experimental Data for Velocity Profile Effects on CFD Analysis of Adiabatic Film-Cooling Effectiveness
More informationRANS COMPUTATION OF RIBBED DUCT FLOW USING FLUENT AND COMPARING TO LES
RANS COMPUTATION OF RIBBED DUCT FLOW USING FLUENT AND COMPARING TO LES Máté M., Lohász +*& / Ákos Csécs + + Department of Fluid Mechanics, Budapest University of Technology and Economics, Budapest * Von
More informationMulti-Objective Optimization of a Grease Mechanical Filter using modefrontier & STAR-CCM+ Marco Carriglio, Alberto Clarich ESTECO SpA Trieste (Italy)
Multi-Objective Optimization of a Grease Mechanical Filter using modefrontier & STAR-CCM+ Marco Carriglio, Alberto Clarich ESTECO SpA Trieste (Italy) Summary Analysis of the performance of the mechanical
More informationSimulation of Turbulent Flow in an Asymmetric Diffuser
Simulation of Turbulent Flow in an Asymmetric Diffuser 1. Purpose 58:160 Intermediate Mechanics of Fluids CFD LAB 3 By Tao Xing and Fred Stern IIHR-Hydroscience & Engineering The University of Iowa C.
More informationITTC Recommended Procedures and Guidelines
Page 1 of 9 Table of Contents 1. OVERVIEW... 2 2. CHOICE OF MODEL OR FULL SCALE... 2 3. NOMINAL WAKE IN MODEL SCALE... 3 3.1 Pre-processing... 3 3.1.1 Geometry... 3 3.1.2 Computational Domain and Boundary
More informationWind Tunnel Validation of Computational Fluid Dynamics-Based Aero-Optics Model
Wind Tunnel Validation of Computational Fluid Dynamics-Based Aero-Optics Model D. Nahrstedt & Y-C Hsia, Boeing Directed Energy Systems E. Jumper & S. Gordeyev, University of Notre Dame J. Ceniceros, Boeing
More informationNUMERICAL 3D TRANSONIC FLOW SIMULATION OVER A WING
Review of the Air Force Academy No.3 (35)/2017 NUMERICAL 3D TRANSONIC FLOW SIMULATION OVER A WING Cvetelina VELKOVA Department of Technical Mechanics, Naval Academy Nikola Vaptsarov,Varna, Bulgaria (cvetelina.velkova1985@gmail.com)
More information4th International PIV Challenge cases C and D Contents
4th International PIV Challenge cases C and D Contents 4th International PIV Challenge cases C and D... 2 1 General recommendation... 2 1.1 Calibration... 2 1.2 Self calibration... 3 1.3 Tomographic reconstruction...
More informationFLUENT Secondary flow in a teacup Author: John M. Cimbala, Penn State University Latest revision: 26 January 2016
FLUENT Secondary flow in a teacup Author: John M. Cimbala, Penn State University Latest revision: 26 January 2016 Note: These instructions are based on an older version of FLUENT, and some of the instructions
More informationApplication of fluorescent particles for particle tracking velocimetry in wind tunnels
Application of fluorescent particles for particle tracking velocimetry in wind tunnels Tamara Guimarães 1,*, K. Todd Lowe 1 1: Dept. of Mechanical Engineering, Virginia Polytechnic Institute and State
More informationNUMERICAL SIMULATION AND EXPERIMENTAL INVESTIGATION OF THE FLOW IN AN AXIAL TURBINE
IAHR OCTOBER 27-31, FOZ DO IGUASSU RESERVED TO IAHR NUMERICAL SIMULATION AND EXPERIMENTAL INVESTIGATION OF THE FLOW IN AN AXIAL TURBINE J.-M. Gagnon, C. Deschênes, G.D. Ciocan, M. Iliescu LAMH, 1065, avenue
More informationTeam 194: Aerodynamic Study of Airflow around an Airfoil in the EGI Cloud
Team 194: Aerodynamic Study of Airflow around an Airfoil in the EGI Cloud CFD Support s OpenFOAM and UberCloud Containers enable efficient, effective, and easy access and use of MEET THE TEAM End-User/CFD
More informationDrivAer-Aerodynamic Investigations for a New Realistic Generic Car Model using ANSYS CFD
DrivAer-Aerodynamic Investigations for a New Realistic Generic Car Model using ANSYS CFD Thomas Frank (*), BenediktGerlicher (*), Juan Abanto (**) (*) ANSYS Germany, Otterfing, Germany (**) ANSYS Inc.,
More information