CONVERGE Features, Capabilities and Applications

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

Download "CONVERGE Features, Capabilities and Applications"

Transcription

1 CONVERGE Features, Capabilities and Applications CONVERGE CONVERGE The industry leading CFD code for complex geometries with moving boundaries. Start using CONVERGE and never make a CFD mesh again. CONVERGE is a revolutionary CFD code that eliminates the grid generation bottleneck from the simulation process, developed for both, high productivity and high accuracy. Learn How CONVERGE Can Simultaneously Increase Productivity and Accuracy Written by engine simulation experts to address the deficiencies of other CFD codes. Uses runtime grid generation so the user spends no time creating grids. Moving boundaries are as easy to include in simulations as stationary boundaries. As a result, including moving valves, for example, does not add any additional setup time. Uses a structured, Cartesian mesh for increased accuracy. Allows for very easy grid resolution studies, which can be critical for obtaining accurate results. The actual geometry information is stored so that increased resolution at boundaries results in a more accurate geometric representation. In other words, no geometric features are lost from the original surface definition as output from CAD. Transient "grid scale" feature can be used to automatically scale the entire grid onthe-fly or at pre-determined times. This is very useful, for example, during the compression portion of the cycle where decreased resolution may be adequate. Fixed grid embedding can be used to add resolution where necessary, such as near nozzles or boundaries. This fixed embedding can be activated and deactivated at any time in the simulation. Adaptive Mesh Refinement (AMR) can be applied to the velocity field and/or any scalar field (e.g., temperature) to automatically increase resolution where needed. A maximum number of cells can be specified by the user to keep runtimes reasonable. In this case, the AMR algorithm will prioritize and add resolution where it is needed most. The SAGE detailed chemistry solver is included for no extra charge. This allows users to include detailed chemistry in their calculations in a very cost-effective way. Advanced sub-models for sprays, wall film, turbulence, ignition, combustion and emissions are included. Fully parallelized with automatic domain decomposition and excellent speedup. One CFD code can be used for all of your IC engine applications. There is no need to "map" between different codes or use different codes for different types of IC engines. Problem Traditional CFD gridding techniques typically have five major issues that lead to increased project budgets and reduced solution accuracy: A large amount of time is needed to create the initial grid.

2 Moving boundaries can significantly increase the complexity and required time to generate the grid and handle the mesh motion. Traditional moving methods continually deform the mesh leading to numerical inaccuracies. Non-orthogonal cells result in numerical inaccuracies and complex numerics. Once the grid is created, the geometry representation is only as accurate as the mesh resolution allows. Solution CONVERGE solves the problems described above by employing a runtime grid generation technique with the following features: Eliminates the user-time to generate grids - only the surface geometry is supplied to the CONVERGE solver. Allows moving boundaries to be handled completely automatically. Eliminates the deforming mesh issues typically associated with moving boundaries. Allows for perfectly orthogonal cells resulting in improved accuracy and simplified numerics. Maintains the true geometry, independent of the mesh resolution. Therefore, the use of fixed embedding or adaptive mesh resolution on boundaries increases the accuracy of the geometry representation. Development Motivation CONVERGE was developed with two goals Increase productivity Increase accuracy Historically, meshing issues have been the limiting bottleneck for both accuracy and productivity. Extensive technologies are available in CONVERGE with the goal of placing cells only when and where they are needed to minimize run times and grid dependencies Adaptive mesh refinement (AMR) to add cells based upon gradients in field variables Grid embedding to add resolution in key areas CONVERGE has a rich set of physical models available for turbulence, spray and combustion to model any engine type (Diesel, natural gas, dual fuel, port fuel injected, prechamber, HCCI, direct injected, etc) CONVERGE runs great in parallel CONVERGE was written from scratch and is not based upon any other CFD tools Advanced Engine Models CONVERGE is the ideal platform for internal combustion engine simulations. CONVERGE contains state of the art sub-models including: Spray models Combustion models Turbulence models Emissions models

3 In addition, there is no user grid generation time associated with CONVERGE simulations. The user can go from the CAD surface file to running the simulation in 1-3 hours for complex geometries with moving boundaries. CONVERGE Modeling CONVERGE is a general purpose 3D CFD Code with focus on engine simulation. CONVERGE is very efficient and accurate, where complex geometries and/or moving geometries and Chemistry are to be modeled. The goal of writing CONVERGE was to make engine modeling fast, easy and accurate. To this end, CONVERGE generates a mesh automatically at runtime thus eliminating all user meshing time. There are many and flexible ways to adjust the simulation grid resolution in space and in time. There are many accuracy benefits of CONVERGE as well, including using a stationary and orthogonal mesh in the interior of your domain, whose grid density automatically varies to resolve gradients using adaptive mesh refinement (AMR). CONVERGE is loaded with the physical models needed to accurately simulate HCCI, Diesel and spark ignited engines. Included are advanced spray and combustion models, including the SAGE detailed chemistry solver. Of course, CONVERGE runs well in parallel as well. CONVERGE Features No User Grid Generation Engine Models Structured, Cartesian Mesh True Geometry Representation Moving Boundaries Grid Size Scaling Fixed Grid Embedding Adaptive Mesh Refinement Full Parallelization Discrete Phase Sub-Models Advanced Combustion Models LES/RANS Turbulence Models Conjugate Heat Transfer Models Design Optimization using Genetic Algorithm Applications Multiple Cylinder Simulations Since there is no user time spent meshing with CONVERGE, modeling multiple cylinders is practically as easy as simulating a single cylinder. This can remove the need to determine port boundary conditions using cycle simulation packages, as the user can include as much of the intake and/or exhaust manifolds as they wish with as much or as little mesh

4 resolution as is desired in each region. This allows for a range of engine simulations that were not previously practical, including: Simulation of cylinder-to-cylinder effects. By adequately resolving all of the cylinders, cylinder-to-cylinder variations can be studied. Simulation of transient pressure conditions with emphasis on one cylinder. With this approach, adequate resolution would be used for one of the cylinders to obtain accurate combustion predictions. The other cylinders could be modeled in a coarse manner with the goal of capturing the correct cylinder pressure at exhaust valve opening. In essence, these coarse cylinders are included only to help determine boundary conditions for the resolved cylinder. The image below shows simulated contours of velocity magnitude (at a crank angle during the intake stroke of cylinder #1) for a four cylinder spark ignited engine. Courtesy Chrysler Group LLC. CI Engines CONVERGE is ideally suited for simulating Diesel engines and is used by engine manufacturers such as Caterpillar Inc. Features such as easy inclusion of complex and moving geometries, adaptive mesh refinement, and a suite of state-of-the-art spray and combustion models makes CONVERGE the ideal CFD code for all of your IC Engine applications. With CONVERGE, full engine simulations can be performed without the need for mapping between different codes. The image below shows the velocity field during the intake stroke for a small bore, high speed direct injection Diesel engine.

5 Spark Ignited Gasoline Engines CONVERGE is ideally suited for gasoline engine simulations, including Port Fuel Injection (PFI) and Gasoline Direct Injection (GDI) designs. Features such as easy inclusion of complex geometries, the SAGE detailed chemistry solver and adaptive mesh refinement allow for fast simulation setup and accurate results. For simulating a GDI engine operating in homogeneous mode in CONVERGE, starting from the CAD geometry definition, the case was up and running in only 2-3 hours. This setup time was spent flagging the surfaces for boundary conditions and setting up the input files (injection specification, valve-lift profiles, etc.). Since the grid is created at runtime in CONVERGE, no time was spent creating the computational mesh. Fuel is injected during the intake stroke, as shown in the image below. In this case a pressure-swirl atomizer is modeled using CONVERGE s suite of spray models. After the fuel has vaporized and mixed with the air, the near-stoichiometric mixture is ignited. Detailed chemistry is used to model the combustion event, and adaptive mesh refinement is included to accurately model the flame propagation. The image below shows a cut-plane colored by temperature. Grid lines are included to illustrate the use of AMR to track the flame front.

6 The image below shows a cut-plane through the spark plug colored by temperature. Grid lines are included to illustrate the use of AMR to track the flame front. The image below shows a cut-plane below the valves colored by velocity. Grid lines are included to illustrate the use of AMR to resolve the flow structures. Other Flow Applications External Flow With CONVERGE, moving body problems are as simple as non-moving ones. Thus you can either calculate the Drag / forces using the steady solver, or simulate for example the effect of a moving rearwing on a racecar. For example, calculating the transient loads associated with the tailgate opening is very simple: The tailgate would need to be flagged as a unique (detached) boundary in the preprocessor Then, in the boundary condition file, the tailgate boundary would need to be specified as a moving boundary with a motion specified by the user (perhaps constant angular velocity)

7 The transient solver would need to be enabled The case would be solved as normal, and every timestep, the solver would rotate the tailgate appropriately and generate a new volume mesh automatically Embedding, grid scaling and AMR all are relative to the base grid size. With these enabled, the user is encouraged to perform a grid refinement study (varying only the base mesh) to find the optimum accuracy/speed setting for the base mesh size. Airfoil The Mach 10 airfoil simulation below illustrates the use of CONVERGE for external flow calculations. The simulation was performed by using a coarse grid initially and then turning on embedded refinement. The activation of refinement was done automatically while the simulation was running (i.e., the simulation does not need to be stopped and restarted with a new grid). Three types of embedding are used in this simulation: Grid Size Scaling - All cells are reduced in size by one scale (i.e., a factor of two). Fixed Grid Embedding - Four layers of cells are placed on the boundary at an embed scale of six. Adaptive Mesh Refinement - AMR is activated on the velocity field with an embed scale of five for the smallest allowed cells and the total number of cells is capped at 250,000.

8 Turbine Simulations Conjugate Heat Transfer Nozzle Simulations Relevant Images and link for Video Files Winklhofer Nozzle Velocity Contour at p=90bar

9 Void Fraction and Streamlines at p=90bar Mass Flow Comparison with Experimental Measurements 3D Nozzle Sector

10 3D Nozzle Cavitation (Void Fraction Contour) 3D Nozzle Cavitation (Void fraction Contour) 3D Nozzle Cavitation (Velocity Contour)

Fully Coupled Automated Meshing with Adaptive Mesh Refinement Technology: CONVERGE CFD. New Trends in CFD II

Fully Coupled Automated Meshing with Adaptive Mesh Refinement Technology: CONVERGE CFD. New Trends in CFD II Flame Front for a Spark Ignited Engine Using Adaptive Mesh Refinement (AMR) to Resolve Turbulent Flame Thickness New Trends in CFD II Fully Coupled Automated Meshing with Adaptive Mesh Refinement Technology:

More information

Combustion Analysis of Inverted M Type Piston CI Engine by Using CFD

Combustion Analysis of Inverted M Type Piston CI Engine by Using CFD Combustion Analysis of Inverted M Type Piston CI Engine by Using CFD Dr. Hiregoudar Yerrennagoudaru 1, Manjunatha K 2, Chandragowda M 3, Ravi Kumar K J 4 1 Professor and PG Co-ordinator (Thermal Power

More information

Express Introductory Training in ANSYS Fluent Lecture 1 Introduction to the CFD Methodology

Express Introductory Training in ANSYS Fluent Lecture 1 Introduction to the CFD Methodology Express Introductory Training in ANSYS Fluent Lecture 1 Introduction to the CFD Methodology Dimitrios Sofialidis Technical Manager, SimTec Ltd. Mechanical Engineer, PhD PRACE Autumn School 2013 - Industry

More information

Fully Automatic In-cylinder Workflow Using HEEDS / es-ice / STAR-CD

Fully Automatic In-cylinder Workflow Using HEEDS / es-ice / STAR-CD Fully Automatic In-cylinder Workflow Using HEEDS / es-ice / STAR-CD Simon Fischer Senior ICE Application Support Engineer CD-adapco Nuremberg Office Gerald Schmidt Director/Powertrain - CD-adapco New York

More information

Spark Ignition Engine Combustion

Spark Ignition Engine Combustion Spark Ignition Engine Combustion MAK 652E Lean Combustion in Stratified Charge Engines Prof.Dr. Cem Soruşbay Istanbul Technical University - Automotive Laboratories Contents Introduction Lean combustion

More information

CFD Simulation of HSDI Engine Combustion Using VECTIS

CFD Simulation of HSDI Engine Combustion Using VECTIS CFD Simulation of HSDI Engine Combustion Using VECTIS G. Li, S.M. Sapsford Ricardo Consulting Engineer s Ltd., Shoreham-by-Sea, UK ABSTRACT As part of the VECTIS code validation programme, CFD simulations

More information

ME6130 An introduction to CFD 1-1

ME6130 An introduction to CFD 1-1 ME6130 An introduction to CFD 1-1 What is CFD? Computational fluid dynamics (CFD) is the science of predicting fluid flow, heat and mass transfer, chemical reactions, and related phenomena by solving numerically

More information

Turbulence Modeling in CFD Simulation of Intake Manifold for a 4 Cylinder Engine

Turbulence Modeling in CFD Simulation of Intake Manifold for a 4 Cylinder Engine HEFAT2012 9 th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics 16 18 July 2012 Malta Turbulence Modeling in CFD Simulation of Intake Manifold for a 4 Cylinder Engine Dr MK

More information

Overset Grids Technology in STAR-CCM+: Methodology and Applications

Overset Grids Technology in STAR-CCM+: Methodology and Applications Overset Grids Technology in STAR-CCM+: Methodology and Applications Eberhard Schreck, Milovan Perić and Deryl Snyder eberhard.schreck@cd-adapco.com milovan.peric@cd-adapco.com deryl.snyder@cd-adapco.com

More information

INJECTION PRESSURE AS A MEANS TO GUIDE AIR UTILIZATION IN DIESEL ENGINE COMBUSTION

INJECTION PRESSURE AS A MEANS TO GUIDE AIR UTILIZATION IN DIESEL ENGINE COMBUSTION INJECTION PRESSURE AS A MEANS TO GUIDE AIR UTILIZATION IN DIESEL ENGINE COMBUSTION H. Dembinski, Scania AB Sweden H.-E. Angstrom, KTH Stockholm, Sweden E. Winklhofer, AVL List GmbH, Austria London, March

More information

Pushing the limits. Turbine simulation for next-generation turbochargers

Pushing the limits. Turbine simulation for next-generation turbochargers Pushing the limits Turbine simulation for next-generation turbochargers KWOK-KAI SO, BENT PHILLIPSEN, MAGNUS FISCHER Computational fluid dynamics (CFD) has matured and is now an indispensable tool for

More information

Customer Training Material. Lecture 2. Introduction to. Methodology ANSYS FLUENT. ANSYS, Inc. Proprietary 2010 ANSYS, Inc. All rights reserved.

Customer Training Material. Lecture 2. Introduction to. Methodology ANSYS FLUENT. ANSYS, Inc. Proprietary 2010 ANSYS, Inc. All rights reserved. Lecture 2 Introduction to CFD Methodology Introduction to ANSYS FLUENT L2-1 What is CFD? Computational Fluid Dynamics (CFD) is the science of predicting fluid flow, heat and mass transfer, chemical reactions,

More information

INTERNAL COMBUSTION ENGINES ICE

INTERNAL COMBUSTION ENGINES ICE INTERNAL COMBUSTION ENGINES Introduction GET IN TOUCH WITH US Scan this code to find your nearest CD-adapco office and CD-adapco resellers, or visit www.cd-adapco.com/global Designers of modern Internal

More information

POLITECNICO DI MILANO Department of Energy

POLITECNICO DI MILANO Department of Energy 1D-3D coupling between GT-Power and OpenFOAM for cylinder and duct system domains G. Montenegro, A. Onorati, M. Zanardi, M. Awasthi +, J. Silvestri + ( ) Dipartimento di Energia - Politecnico di Milano

More information

10. Combustion Engines Introduction This section will address the basic features and operating principles of practical combustion systems,

10. Combustion Engines Introduction This section will address the basic features and operating principles of practical combustion systems, 10. Combustion Engines Introduction This section will address the basic features and operating principles of practical combustion systems, mainly internal combustion engines, predominantly used for propulsion.

More information

Hydrogen Fueled I.C. Engine

Hydrogen Fueled I.C. Engine Hydrogen Fueled I.C. Engine Chetan Patel[90] Roll No:-10105143 chetanp@iitk.ac.in Abstract In this paper, initially in this paper some design modification is required for using hydrogen as a fuel in existing

More information

COMBUSTION in CI-ENGINES

COMBUSTION in CI-ENGINES Internal Combustion Engines MAK 493E COMBUSTION in CI-ENGINES Prof.Dr. Cem Soruşbay Istanbul Technical University Internal Combustion Engines MAK 493E Combustion in CI Engines Introduction Diesel combustion

More information

Introduction to CFD Analysis

Introduction to CFD Analysis Introduction to CFD Analysis 2-1 What is CFD? Computational Fluid Dynamics (CFD) is the science of predicting fluid flow, heat and mass transfer, chemical reactions, and related phenomena by solving numerically

More information

RESEARCH PROJECTS. For more information about our research projects please contact us at: info@naisengineering.com

RESEARCH PROJECTS. For more information about our research projects please contact us at: info@naisengineering.com RESEARCH PROJECTS For more information about our research projects please contact us at: info@naisengineering.com Or visit our web site at: www.naisengineering.com 2 Setup of 1D Model for the Simulation

More information

Course Name Engine Emissions. Department Mechanical Engineering IIT Kanpur. NPTEL Online - IIT Bombay

Course Name Engine Emissions. Department Mechanical Engineering IIT Kanpur. NPTEL Online - IIT Bombay NPTEL Online - IIT Bombay Course Name Engine Emissions Department Mechanical Engineering IIT Kanpur Instructor Prof. BP Pundir file:///c /...s%20and%20settings/iitkrana1/my%20documents/google%20talk%20received%20files/engine_combustion/lecture1/main.html[6/15/2012

More information

Commercial CFD Software Modelling

Commercial CFD Software Modelling Commercial CFD Software Modelling Dr. Nor Azwadi bin Che Sidik Faculty of Mechanical Engineering Universiti Teknologi Malaysia INSPIRING CREATIVE AND INNOVATIVE MINDS 1 CFD Modeling CFD modeling can be

More information

Optimization of Operating Parameters for a 2-stroke DI Engine with KIVA 3V and a Genetic Algorithm Search Technique

Optimization of Operating Parameters for a 2-stroke DI Engine with KIVA 3V and a Genetic Algorithm Search Technique Optimization of Operating Parameters for a 2-stroke DI Engine with KIVA 3V and a Genetic Algorithm Search Technique Mark N. Subramaniam and Rolf D. Reitz Engine Research Center, University of Wisconsin-Madison

More information

Computational Fluid Dynamics in Automotive Applications

Computational Fluid Dynamics in Automotive Applications Computational Fluid Dynamics in Automotive Applications Hrvoje Jasak h.jasak@wikki.co.uk Wikki Ltd, United Kingdom FSB, University of Zagreb, Croatia 1/15 Outline Objective Review the adoption of Computational

More information

Modeling and Simulation of Axial Fan Using CFD Hemant Kumawat

Modeling and Simulation of Axial Fan Using CFD Hemant Kumawat Modeling and Simulation of Axial Fan Using CFD Hemant Kumawat Abstract Axial flow fans, while incapable of developing high pressures, they are well suitable for handling large volumes of air at relatively

More information

CFD Analysis of Flue Gases over Valve Spindle with Rotor Wings in 2 Stroke Marine Diesel Engines

CFD Analysis of Flue Gases over Valve Spindle with Rotor Wings in 2 Stroke Marine Diesel Engines IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) e-issn: 2278-1684,p-ISSN: 2320-334X, Volume 12, Issue 4 Ver. VII (Jul. - Aug. 2015), PP 38-45 www.iosrjournals.org CFD Analysis of Flue Gases

More information

Introduction to CFD Analysis

Introduction to CFD Analysis Introduction to CFD Analysis Introductory FLUENT Training 2006 ANSYS, Inc. All rights reserved. 2006 ANSYS, Inc. All rights reserved. 2-2 What is CFD? Computational fluid dynamics (CFD) is the science

More information

Advanced combustion modelling with ANSYS FLUENT and Tabkin

Advanced combustion modelling with ANSYS FLUENT and Tabkin Advanced combustion modelling with ANSYS FLUENT and Tabkin F.A. Tap and P. Schapotschnikow ANSYS Belgium Conference 2011 ferry.tap@dacolt.com Dacolt is a trading name of Dacolt International BV, registered

More information

Advanced discretisation techniques (a collection of first and second order schemes); Innovative algorithms and robust solvers for fast convergence.

Advanced discretisation techniques (a collection of first and second order schemes); Innovative algorithms and robust solvers for fast convergence. New generation CFD Software APUS-CFD APUS-CFD is a fully interactive Arbitrary Polyhedral Unstructured Solver. APUS-CFD is a new generation of CFD software for modelling fluid flow and heat transfer in

More information

FLOW ANALYSIS OF EFFECT OF STRUTS IN AN ANNULAR DIFFUSER

FLOW ANALYSIS OF EFFECT OF STRUTS IN AN ANNULAR DIFFUSER FLOW ANALYSIS OF EFFECT OF STRUTS IN AN ANNULAR DIFFUSER 1, 2, 3 Raghul., DANUSHKOTTI., Nanda Gopal. B.E Student, Department of Mechanical Engineering, Velammal Engg College, Chennai ABSTRACT Some recent

More information

Engine Heat Transfer. Engine Heat Transfer

Engine Heat Transfer. Engine Heat Transfer Engine Heat Transfer 1. Impact of heat transfer on engine operation 2. Heat transfer environment 3. Energy flow in an engine 4. Engine heat transfer Fundamentals Spark-ignition engine heat transfer Diesel

More information

Parametric optimization of an exhaust manifold using Isight, STAR-CCM+ and CATIA V5

Parametric optimization of an exhaust manifold using Isight, STAR-CCM+ and CATIA V5 Abstract Parametric optimization of an exhaust manifold using Isight, STAR-CCM+ and CATIA V5 Joel Davison CD-adapco - London The work presented demonstrates how Isight may be used to drive STAR-CCM+ and

More information

CFD Analysis of a MILD Low-Nox Burner for the Oil and Gas industry

CFD Analysis of a MILD Low-Nox Burner for the Oil and Gas industry CFD Analysis of a MILD Low-Nox Burner for the Oil and Gas industry Alessandro Atzori Supervised by: Vincent Moreau Framework: Industria 2015 Bill on competitiveness and industrial policy, approved on 22

More information

TwinMesh for Positive Displacement Machines: Structured Meshes and reliable CFD Simulations

TwinMesh for Positive Displacement Machines: Structured Meshes and reliable CFD Simulations TwinMesh for Positive Displacement Machines: Structured Meshes and reliable CFD Simulations 05.06.2014 Dipl.-Ing. Jan Hesse, Dr. Andreas Spille-Kohoff CFX Berlin Software GmbH Karl-Marx-Allee 90 A 10243

More information

RECENT ADVANCES IN AVL'S CFD MESH GENERATION SOFTWARE ESE-TOOLS

RECENT ADVANCES IN AVL'S CFD MESH GENERATION SOFTWARE ESE-TOOLS INTERNATIONAL DESIGN CONFERENCE - DESIGN 2008 Dubrovnik - Croatia, May 19-22, 2008. RECENT ADVANCES IN AVL'S CFD MESH GENERATION SOFTWARE ESE-TOOLS F. Juretić, W. Moser and G. Rainer Keywords: CFD, mesh

More information

Tomasz STELMACH. WindSim Annual User Meeting 16 June 2011

Tomasz STELMACH. WindSim Annual User Meeting 16 June 2011 Developments of PHOENICS as CFD engine for WindSim Tomasz STELMACH Ltd, UK ts@cham.co.uk WindSim Annual User Meeting 16 June 2011 Topics of presentation 1. - who we are, what we do 2. PHOENICS 3. GCV -

More information

MECHANICAL ENGINEERING DEPARTMENT

MECHANICAL ENGINEERING DEPARTMENT FACULTY OF ENGINEERING SHREE SARASWATI EDUCATION SANSTHAN S GROUP OF INSTITUTIONS AT PO, RAJPUR TA. KADI, DIST. MEHSANA MECHANICAL ENGINEERING DEPARTMENT SYLLABUS FOR MID SEM EXAMINATON EVEN SEM 2015 SUBJECT

More information

Multiphase Flow - Appendices

Multiphase Flow - Appendices Discovery Laboratory Multiphase Flow - Appendices 1. Creating a Mesh 1.1. What is a geometry? The geometry used in a CFD simulation defines the problem domain and boundaries; it is the area (2D) or volume

More information

1. INTRODUCTION Internal combustion engines are devices that generate work using the products of combustion as the working fluid rather than as a

1. INTRODUCTION Internal combustion engines are devices that generate work using the products of combustion as the working fluid rather than as a 1. INTRODUCTION Internal combustion engines are devices that generate work using the products of combustion as the working fluid rather than as a heat transfer medium. To produce work, the combustion is

More information

Computational Modeling of Wind Turbines in OpenFOAM

Computational Modeling of Wind Turbines in OpenFOAM Computational Modeling of Wind Turbines in OpenFOAM Hamid Rahimi hamid.rahimi@uni-oldenburg.de ForWind - Center for Wind Energy Research Institute of Physics, University of Oldenburg, Germany Outline Computational

More information

EXPERIMENT NO. 3. Aim: To study the construction and working of 4- stroke petrol / diesel engine.

EXPERIMENT NO. 3. Aim: To study the construction and working of 4- stroke petrol / diesel engine. EXPERIMENT NO. 3 Aim: To study the construction and working of 4- stroke petrol / diesel engine. Theory: A machine or device which derives heat from the combustion of fuel and converts part of this energy

More information

Thermal Simulation of a Power Electronics Cold Plate with a Parametric Design Study

Thermal Simulation of a Power Electronics Cold Plate with a Parametric Design Study EVS28 KINTEX, Korea, May 3-6, 2015 Thermal Simulation of a Power Electronics Cold Plate with a Parametric Design Study Boris Marovic Mentor Graphics (Deutschland) GmbH, Germany, boris_marovic@mentor.com

More information

Toyota s High Efficiency Diesel Combustion Concept

Toyota s High Efficiency Diesel Combustion Concept 2015 Engine Research Center Symposium University of Wisconsin-Madison 1 Takeshi HASHIZUME Toyota Motor Corporation Content 2 1. Introduction 2. Combustion Concept 3. Results Combustion characteristics

More information

HYBRID ROCKET TECHNOLOGY IN THE FRAME OF THE ITALIAN HYPROB PROGRAM

HYBRID ROCKET TECHNOLOGY IN THE FRAME OF THE ITALIAN HYPROB PROGRAM 8 th European Symposium on Aerothermodynamics for space vehicles HYBRID ROCKET TECHNOLOGY IN THE FRAME OF THE ITALIAN HYPROB PROGRAM M. Di Clemente, R. Votta, G. Ranuzzi, F. Ferrigno March 4, 2015 Outline

More information

Engineering Fundamentals of the Internal Combustion Engine

Engineering Fundamentals of the Internal Combustion Engine Engineering Fundamentals of the Internal Combustion Engine SECOND EDITION Willard W. Pulkrabek University of Wisconsin Plattevilie PEARSON Prentice Hall Upper Saddle River, New Jersey 07458 Preface Acknowledgments

More information

1

1 Dual Fuel Medium Speed Engine Power Plants: When it makes dollars and sense Caterpillar Energy solution, CAT Power Plants By: Hicham AIT CHAHDAD October 2014 As demand for medium speed engine (MSE) power

More information

CFD SIMULATION OF NATURAL GAS COMBUSTION AND IST APPLICATION TO TUNNEL KILN FIRING

CFD SIMULATION OF NATURAL GAS COMBUSTION AND IST APPLICATION TO TUNNEL KILN FIRING CFD SIMULATION OF NATURAL GAS COMBUSTION AND IST APPLICATION TO TUNNEL KILN FIRING. R. Obenaus-Emler University of Leoben Contents 1. Intoduction to combustion models in OpenFOAM 2. The Flamelet-Model

More information

EFC Topic 4.2 Simulation-to-Simulation Benchmarking (LES, RANS) Objectives of the 4.2

EFC Topic 4.2 Simulation-to-Simulation Benchmarking (LES, RANS) Objectives of the 4.2 EFC Topic 4.2 Simulation-to-Simulation Benchmarking (LES, RANS) Presented by Cecile PERA (IFPEN) Objectives of the 4.2 Summarize: some guidelines for engine simulations 1 Introduction Spray Spark ignition

More information

Auto-Ignition and Flame Propagation Modelling Approaches with VECTIS

Auto-Ignition and Flame Propagation Modelling Approaches with VECTIS Auto-Ignition and Flame Propagation Modelling Approaches with VECTIS Beck, L.M., Mauß, F., Montefrancesco, E., Winkler, A. Motivation Today s car manufactures inevitably have to focus on the reduction

More information

A Common Engine Platform for Engine LES Development and Validation

A Common Engine Platform for Engine LES Development and Validation A Common Engine Platform for Engine LES Development and Validation Volker Sick, D. Reuss, P. Abraham, A. Alharbi, O. Almagri, & H. Chen University of Michigan, Ann Arbor, MI, USA Chris Rutland & Y. Zhang,

More information

On the Use of the Immersed Boundary Method for Engine Modeling

On the Use of the Immersed Boundary Method for Engine Modeling On the Use of the Immersed Boundary Method for Engine Modeling K. J. Richards, E. Pomraning, P. K. Senecal Convergent Thinking C. Y. Choi Caterpillar Inc. C. J. Rutland University of Wisconsin--Madison

More information

Compatibility and Accuracy of Mesh Generation in HyperMesh and CFD Simulation with Acusolve for Torque Converter

Compatibility and Accuracy of Mesh Generation in HyperMesh and CFD Simulation with Acusolve for Torque Converter Compatibility and Accuracy of Mesh Genen in HyperMesh and CFD Simulation with Acusolve for Converter Kathiresan M CFD Engineer Valeo India Private Limited Block - A, 4th Floor, TECCI Park, No. 176 Rajiv

More information

REAL TIME FUEL INJECTION IN SI ENGINE USING ELECTRONIC INSTRUMENTATION

REAL TIME FUEL INJECTION IN SI ENGINE USING ELECTRONIC INSTRUMENTATION REAL TIME FUEL INJECTION IN SI ENGINE USING ELECTRONIC INSTRUMENTATION V. VINOTH KUMAR, M.E, Assistant Professor of Mechanical Engineering, Annamalai University. Tamilnadu, India. ABSTRACT To meet the

More information

Lecture 7 - Meshing. Applied Computational Fluid Dynamics

Lecture 7 - Meshing. Applied Computational Fluid Dynamics Lecture 7 - Meshing Applied Computational Fluid Dynamics Instructor: André Bakker http://www.bakker.org André Bakker (2002-2006) Fluent Inc. (2002) 1 Outline Why is a grid needed? Element types. Grid types.

More information

Application of CFD Simulation in the Design of a Parabolic Winglet on NACA 2412

Application of CFD Simulation in the Design of a Parabolic Winglet on NACA 2412 , July 2-4, 2014, London, U.K. Application of CFD Simulation in the Design of a Parabolic Winglet on NACA 2412 Arvind Prabhakar, Ayush Ohri Abstract Winglets are angled extensions or vertical projections

More information

Computational Fluid Dynamic Modeling Applications

Computational Fluid Dynamic Modeling Applications Computational Fluid Dynamic Modeling Applications Canadian Heavy Oil Conference Dr. Marvin Weiss What is CFD Computational Fluid Dynamics Colorful Fluid Dynamics Colors For Directors Carefully Fitted Data

More information

Coupled modefrontier/fire Approach for I-C Engine Intake Port Optimization

Coupled modefrontier/fire Approach for I-C Engine Intake Port Optimization Coupled modefrontier/fire Approach for I-C Engine Intake Port Optimization Author: Giuseppe Tesolin University of Trieste Aiders: Peter Tibaut AVL List GmbH Paolo Geremia ES.TEC.O s.r.l. Francesco Pinto

More information

C H A P T E R 5. Principles of Engine Operation, Two- and Four-Stroke Engines

C H A P T E R 5. Principles of Engine Operation, Two- and Four-Stroke Engines C H A P T E R 5 Principles of Engine Operation, Two- and Four-Stroke Engines Learning Objectives Explain simple engine operation. Explain why gasoline is atomized in the small engine. Describe four-stroke

More information

Internal Combustion Optical Sensor (ICOS)

Internal Combustion Optical Sensor (ICOS) Internal Combustion Optical Sensor (ICOS) Optical Engine Indication The ICOS System In-Cylinder Optical Indication 4air/fuel ratio 4exhaust gas concentration and EGR 4gas temperature 4analysis of highly

More information

THE CFD SIMULATION OF THE FLOW AROUND THE AIRCRAFT USING OPENFOAM AND ANSA

THE CFD SIMULATION OF THE FLOW AROUND THE AIRCRAFT USING OPENFOAM AND ANSA THE CFD SIMULATION OF THE FLOW AROUND THE AIRCRAFT USING OPENFOAM AND ANSA Adam Kosík Evektor s.r.o., Czech Republic KEYWORDS CFD simulation, mesh generation, OpenFOAM, ANSA ABSTRACT In this paper we describe

More information

Developing Fuel Injection Strategies for Using Ammonia in Direct Injection Diesel Engines

Developing Fuel Injection Strategies for Using Ammonia in Direct Injection Diesel Engines Developing Fuel Injection Strategies for Using Ammonia in Direct Injection Diesel Engines Matthias Veltman Dr. Song-Charng Kong Department of Mechanical Engineering Iowa State University 1 Acknowledgements:

More information

Adaptation of General Purpose CFD Code for Fusion MHD Applications*

Adaptation of General Purpose CFD Code for Fusion MHD Applications* Adaptation of General Purpose CFD Code for Fusion MHD Applications* Andrei Khodak Princeton Plasma Physics Laboratory P.O. Box 451 Princeton, NJ, 08540 USA akhodak@pppl.gov Abstract Analysis of many fusion

More information

BBIPED: BCAM-Baltogar Industrial Platform for Engineering design

BBIPED: BCAM-Baltogar Industrial Platform for Engineering design BBIPED: BCAM-Baltogar Industrial Platform for Engineering design Carmen Alonso-Montes, Imanol García, Ali Ramezani, Lakhdar Remaki BCAM Basque Center for Applied Mathematics (Bilbao), Spain Motivation

More information

EXPERIMENTAL VALIDATION AND COMBUSTION CHAMBER GEOMETRY OPTIMIZATION OF DIESEL ENGINE BY USING DIESEL RK

EXPERIMENTAL VALIDATION AND COMBUSTION CHAMBER GEOMETRY OPTIMIZATION OF DIESEL ENGINE BY USING DIESEL RK INTERNATIONAL JOURNAL OF MECHANICAL ENGINEERING AND TECHNOLOGY (IJMET) International Journal of Mechanical Engineering and Technology (IJMET), ISSN 0976 6340(Print), ISSN 0976 6340 (Print) ISSN 0976 6359

More information

2013 Code_Saturne User Group Meeting. EDF R&D Chatou, France. 9 th April 2013

2013 Code_Saturne User Group Meeting. EDF R&D Chatou, France. 9 th April 2013 2013 Code_Saturne User Group Meeting EDF R&D Chatou, France 9 th April 2013 Thermal Comfort in Train Passenger Cars Contact For further information please contact: Brian ANGEL Director RENUDA France brian.angel@renuda.com

More information

High Fidelity Multiphase Simulations Studying Primary Breakup

High Fidelity Multiphase Simulations Studying Primary Breakup High Fidelity Multiphase Simulations Studying Primary Breakup Mathis Bode, RWTH Aachen University Vincent Le Chenadec, École Centrale Paris Heinz Pitsch, RWTH Aachen University Prof. Dr.-Ing. Heinz Pitsch

More information

EMISSIONS #1 - COMBUSTION CHEMISTRY

EMISSIONS #1 - COMBUSTION CHEMISTRY Introduction to Combustion Chemistry The gasoline-powered internal combustion engine takes air from the atmosphere and gasoline, a hydrocarbon fuel, and through the process of combustion releases the chemical

More information

Turbocharged Spark Ignited Direct Injection A Fuel Economy Solution for the US June 10, 2009

Turbocharged Spark Ignited Direct Injection A Fuel Economy Solution for the US June 10, 2009 Turbocharged Spark Ignited Direct Injection A Fuel Economy Solution for the US June 10, 2009 Paul Whitaker Chief Technologist, Gasoline Engines AVL Powertrain Engineering Inc. Global Gasoline Technology

More information

Nom : Date : TD Note : How engine works

Nom : Date : TD Note : How engine works Page 1 sur 5 1. How a car engine Works The process by which a car works is a lot simpler than you may think. When a driver turns a key in the ignition: The car battery powers up sending Power to the starter

More information

Application of FEM-Tools in the Engine Development Process

Application of FEM-Tools in the Engine Development Process Application of FEM-Tools in the Engine Development Process H. Petrin, B. Wiesler e-mail: helmut.petrin@avl.com, bruno.wiesler@avl.com AVL List GmbH Graz, Austria Abstract The requirements for the development

More information

AN EFFECT OF GRID QUALITY ON THE RESULTS OF NUMERICAL SIMULATIONS OF THE FLUID FLOW FIELD IN AN AGITATED VESSEL

AN EFFECT OF GRID QUALITY ON THE RESULTS OF NUMERICAL SIMULATIONS OF THE FLUID FLOW FIELD IN AN AGITATED VESSEL 14 th European Conference on Mixing Warszawa, 10-13 September 2012 AN EFFECT OF GRID QUALITY ON THE RESULTS OF NUMERICAL SIMULATIONS OF THE FLUID FLOW FIELD IN AN AGITATED VESSEL Joanna Karcz, Lukasz Kacperski

More information

CFD modelling of diesel engine at partial load

CFD modelling of diesel engine at partial load TEKA. COMMISSION OF MOTORIZATION AND ENERGETICS IN AGRICULTURE 2013, Vol. 13, No. 2, 97 102 CFD modelling of diesel engine at partial load Wojciech Tutak Czestochowa University of Technology, Poland 42-201

More information

Recent Researches in Neural Networks, Fuzzy Systems, Evolutionary Computing and Automation

Recent Researches in Neural Networks, Fuzzy Systems, Evolutionary Computing and Automation An Approach for Modeling the Valve Train System to Control the Homogeneous Combustion in a Compression Ignition Engine RADU COSGAREA, CORNELIU COFARU, MIHAI ALEONTE, MARIA LUMINITA SCUTARU, LIVIU JELENSCHI,

More information

Sheet 8:Chapter C It is less than the thermal efficiency of a Carnot cycle.

Sheet 8:Chapter C It is less than the thermal efficiency of a Carnot cycle. Thermo 1 (MEP 261) Thermodynamics An Engineering Approach Yunus A. Cengel & Michael A. Boles 7 th Edition, McGraw-Hill Companies, ISBN-978-0-07-352932-5, 2008 Sheet 8:Chapter 9 9 2C How does the thermal

More information

CAE FRAME WORK FOR AERODYNAMIC DESIGN DEVELOPMENT OF AUTOMOTIVE VEHICLES

CAE FRAME WORK FOR AERODYNAMIC DESIGN DEVELOPMENT OF AUTOMOTIVE VEHICLES CAE FRAME WORK FOR AERODYNAMIC DESIGN DEVELOPMENT OF AUTOMOTIVE VEHICLES 1 Pravin Peddiraju *, 1 Arthur Papadopoulous, 2 Rajneesh Singh 1 BETA CAE Systems, USA, 2 General Motors Corporation, USA KEYWORDS

More information

CFD SIMULATION OF SDHW STORAGE TANK WITH AND WITHOUT HEATER

CFD SIMULATION OF SDHW STORAGE TANK WITH AND WITHOUT HEATER International Journal of Advancements in Research & Technology, Volume 1, Issue2, July-2012 1 CFD SIMULATION OF SDHW STORAGE TANK WITH AND WITHOUT HEATER ABSTRACT (1) Mr. Mainak Bhaumik M.E. (Thermal Engg.)

More information

Modelling and Computation of Compressible Liquid Flows with Phase Transition

Modelling and Computation of Compressible Liquid Flows with Phase Transition JASS 2009 - Joint Advanced Student School, Saint Petersburg, 29. 03. - 07. 04. 2009 Modelling and Simulation in Multidisciplinary Engineering Modelling and Computation of Compressible Liquid Flows with

More information

Lecture 16 - Free Surface Flows. Applied Computational Fluid Dynamics

Lecture 16 - Free Surface Flows. Applied Computational Fluid Dynamics Lecture 16 - Free Surface Flows Applied Computational Fluid Dynamics Instructor: André Bakker http://www.bakker.org André Bakker (2002-2006) Fluent Inc. (2002) 1 Example: spinning bowl Example: flow in

More information

CFD Applications using CFD++ Paul Batten & Vedat Akdag

CFD Applications using CFD++ Paul Batten & Vedat Akdag CFD Applications using CFD++ Paul Batten & Vedat Akdag Metacomp Products available under Altair Partner Program CFD++ Introduction Accurate multi dimensional polynomial framework Robust on wide variety

More information

DIESEL ENGINE IN-CYLINDER CALCULATIONS WITH OPENFOAM

DIESEL ENGINE IN-CYLINDER CALCULATIONS WITH OPENFOAM DIESEL ENGINE IN-CYLINDER CALCULATIONS WITH OPENFOAM 1 Ervin Adorean *, 1 Gheorghe-Alexandru Radu 1 Transilvania University of Brasov, Romania KEYWORDS - diesel, engine, CFD, simulation, OpenFOAM ABSTRACT

More information

Chapters 7. Performance Comparison of CI and SI Engines. Performance Comparison of CI and SI Engines con t. SI vs CI Performance Comparison

Chapters 7. Performance Comparison of CI and SI Engines. Performance Comparison of CI and SI Engines con t. SI vs CI Performance Comparison Chapters 7 SI vs CI Performance Comparison Performance Comparison of CI and SI Engines The CI engine cycle can be carried out in either 2 or 4 strokes of the piston, with the 4-cycle CI engine being more

More information

Simulation of Fluid-Structure Interactions in Aeronautical Applications

Simulation of Fluid-Structure Interactions in Aeronautical Applications Simulation of Fluid-Structure Interactions in Aeronautical Applications Martin Kuntz Jorge Carregal Ferreira ANSYS Germany D-83624 Otterfing Martin.Kuntz@ansys.com December 2003 3 rd FENET Annual Industry

More information

Multi-Block Gridding Technique for FLOW-3D Flow Science, Inc. July 2004

Multi-Block Gridding Technique for FLOW-3D Flow Science, Inc. July 2004 FSI-02-TN59-R2 Multi-Block Gridding Technique for FLOW-3D Flow Science, Inc. July 2004 1. Introduction A major new extension of the capabilities of FLOW-3D -- the multi-block grid model -- has been incorporated

More information

CastNet: Modelling platform for open source solver technology

CastNet: Modelling platform for open source solver technology CastNet: Modelling platform for open source solver technology. DHCAE Tools GmbH Address: Friedrich-Ebert-Str. 368, 47800 Krefeld, Germany / Company site: Alte Rather Str. 207 / 47802 Krefeld Phone +49

More information

Coupled CFD/1D Combustion Modeling in Two-Stroke Engines for Light Aircrafts Application: DI vs. IDI Systems

Coupled CFD/1D Combustion Modeling in Two-Stroke Engines for Light Aircrafts Application: DI vs. IDI Systems Coupled CFD/1D Combustion Modeling in Two-Stroke Engines for Light Aircrafts Application: DI vs. IDI Systems V. Golovitchev, Chalmers University of Technology, Sweden E. Mattarelli, C. Rinaldini, University

More information

Set up and solve a transient problem using the pressure-based solver and VOF model.

Set up and solve a transient problem using the pressure-based solver and VOF model. Tutorial 18. Using the VOF Model This tutorial was run using ANSYS FLUENT 12.1. The results have been updated to reflect the change in the default setting of node-based smoothing for the surface tension

More information

Development of a Flame Propagation Model for Dual-Fuel Partially Premixed Compression Ignition Engines

Development of a Flame Propagation Model for Dual-Fuel Partially Premixed Compression Ignition Engines Development of a Flame Propagation Model for Dual-Fuel Partially Premixed Compression Ignition Engines Satbir Singh, Long Liang, Song-Charng Kong, and Rolf D. Reitz Engine Research Center, University of

More information

Low-NOx burner design evaluation by CFD

Low-NOx burner design evaluation by CFD 17 th European Symposium on Computer Aided Process Engineering ESCAPE17 V. Plesu and P.S. Agachi (Editors) 2007 Elsevier B.V. All rights reserved. 1 Low-NOx burner design evaluation by CFD Marek Šarlej,

More information

Combustion Engine Optimization

Combustion Engine Optimization Combustion Engine Optimization Stefan Jakobsson, Muhammad Saif Ul Hasnain,, Robert Rundqvist, Fredrik Edelvik, Michael Patriksson Mattias Ljungqvist Volvo Cars, Johan Wallesten and Dimitri Lortet Volvo

More information

GEOMETRIC, THERMODYNAMIC AND CFD ANALYSES OF A REAL SCROLL EXPANDER FOR MICRO ORC APPLICATIONS

GEOMETRIC, THERMODYNAMIC AND CFD ANALYSES OF A REAL SCROLL EXPANDER FOR MICRO ORC APPLICATIONS 2 nd International Seminar on ORC Power Systems October 7 th & 8 th, 213 De Doelen, Rotterdam, NL GEOMETRIC, THERMODYNAMIC AND CFD ANALYSES OF A REAL SCROLL EXPANDER FOR MICRO ORC APPLICATIONS M. Morini,

More information

SIMULATION MODEL OF THE SINGLECYLINDER COMBUSTION ENGINE MZ125

SIMULATION MODEL OF THE SINGLECYLINDER COMBUSTION ENGINE MZ125 SIMULATION MODEL OF THE SINGLECYLINDER COMBUSTION ENGINE MZ125 Pavel Dresler 1, Michal Richtář 2 Summary: The use of one-dimensional CFD engine simulation is an essential tool to the engine development

More information

CastNet: GUI environment for OpenFOAM

CastNet: GUI environment for OpenFOAM CastNet: GUI environment for OpenFOAM CastNet is a preprocessing system and job-control system for OpenFOAM. CastNet works with the standard OpenFOAM releases provided by ESI Group as well as ports for

More information

An Experimental Analysis - Combustion Control Strategy for HCCI Engine

An Experimental Analysis - Combustion Control Strategy for HCCI Engine An Experimental Analysis - Combustion Control Strategy for HCCI Engine BY Prof. Sanjay Harip ME (Mech), FMSAE, AMIE, AMSIAM, AMIE Government Polytechnic, Ahmednagar, M.S, INDIA Directorate of Technical

More information

Fluent Software Training TRN Boundary Conditions. Fluent Inc. 2/20/01

Fluent Software Training TRN Boundary Conditions. Fluent Inc. 2/20/01 Boundary Conditions C1 Overview Inlet and Outlet Boundaries Velocity Outline Profiles Turbulence Parameters Pressure Boundaries and others... Wall, Symmetry, Periodic and Axis Boundaries Internal Cell

More information

Purdue University - School of Mechanical Engineering. Objective: Study and predict fluid dynamics of a bluff body stabilized flame configuration.

Purdue University - School of Mechanical Engineering. Objective: Study and predict fluid dynamics of a bluff body stabilized flame configuration. Extinction Dynamics of Bluff Body Stabilized Flames Investigator: Steven Frankel Graduate Students: Travis Fisher and John Roach Sponsor: Air Force Research Laboratory and Creare, Inc. Objective: Study

More information

University Turbine Systems Research 2012 Fellowship Program Final Report. Prepared for: General Electric Company

University Turbine Systems Research 2012 Fellowship Program Final Report. Prepared for: General Electric Company University Turbine Systems Research 2012 Fellowship Program Final Report Prepared for: General Electric Company Gas Turbine Aerodynamics Marion Building 300 Garlington Rd Greenville, SC 29615, USA Prepared

More information

Introductory FLUENT Training

Introductory FLUENT Training Chapter 10 Transient Flow Modeling Introductory FLUENT Training www.ptecgroup.ir 10-1 Motivation Nearly all flows in nature are transient! Steady-state assumption is possible if we: Ignore transient fluctuations

More information

TwinMesh Grid Generator and CFD Simulation with ANSYS CFX

TwinMesh Grid Generator and CFD Simulation with ANSYS CFX TwinMesh Grid Generator and CFD Simulation with ANSYS CFX 2nd Short Course on CFD in Rotary Positive Displacement Machines London, 5th 6th September 2015 Dr. Andreas Spille-Kohoff Jan Hesse Rainer Andres

More information

CFD software overview comparison, limitations and user interfaces

CFD software overview comparison, limitations and user interfaces CFD software overview comparison, limitations and user interfaces Daniel Legendre Introduction to CFD Turku, 05.05.2015 Åbo Akademi University Thermal and Flow Engineering Laboratory 05.05.2015 1 Some

More information

Lecture 6 - Boundary Conditions. Applied Computational Fluid Dynamics

Lecture 6 - Boundary Conditions. Applied Computational Fluid Dynamics Lecture 6 - Boundary Conditions Applied Computational Fluid Dynamics Instructor: André Bakker http://www.bakker.org André Bakker (2002-2006) Fluent Inc. (2002) 1 Outline Overview. Inlet and outlet boundaries.

More information

Numerical Simulation of the External Flow Field. Around a Bluff Car*

Numerical Simulation of the External Flow Field. Around a Bluff Car* Numerical Simulation of the External Flow Field Around a Bluff Car* Sun Yongling, Wu Guangqiang, Xieshuo Automotive Engineering Department Shanghai Tongji University Shanghai, China E-mail: wuqjuhyk@online.sh.cn

More information