Vehicle Aerodynamics,

2009 SP-2226

'International Published by:

SAE International 400 Commonwealth Drive

Warrendale, PA 15096-0001 USA

Phone: (724) 776-4841 Fax: (724) 776-0790

April 2009

TABLE OF CONTENTS

2009-01-0001 The Effect of High Turbulence Intensities on Surface Pressure Fluctuations and Wake Structures of a Vehicle Model 1

David Schröck, Nils Widdecke and Jochen Wiedemann IVK / FKFS Universität Stuttgart

2009-01-0002 On-road Turbulence: Part 2 15 Scott Wordley

Monash University, Melbourne, Australia Jeff Saunders

Vehicle Aero-acoustic Laboratories (VAL), Melbourne, Australia

2009-01-0003 The Effect of Free Stream Turbulence on A-pillar Airflow 43

Jeff Howell Tata Motors European Technical Centre

Joshua Baden Fuller and Martin Passmore Loughborough University

2009-01 -0004 Flow Structures above the Trunk Deck of Sedan-Type Vehicles and Their Influence on High-Speed Vehicle Stability 1st Report: On-Road and Wind-Tunnel Studies on Unsteady Flow Characteristics that Stabilize Vehicle Behavior 49

Yoshihiro Okada, Takahide Nouzawa, Takaki Nakamura and Satoshi Okamoto

Mazda Motor Corporation

2009-01-0005 Analysis of a Vehicle's Longitudinal Response to an Unsteady Wind Environment 69

Günter Bischof FH Joanneum

2009-01 -0006 Flow Structures above the Trunk Deck of Sedan-Type Vehicles and Their Influence on High-Speed Vehicle Stability 2nd Report: Numerical Investigation on Simplified Vehicle Models using Large-Eddy Simulation 79

Takuji Nakashima Hiroshima University

Makoto Tsubokura Hokkaido University

Takahide Nouzawa and Takaki Nakamura Mazda Motor Corporation

Masashi Ichimiya Tokushima University

2009-01-0007 Development of an Unsteady Aerodynamic Simulator Using Large-Eddy Simulation Based on High-Performance Computing Technique 91

Makoto Tsubokura Hokkaido University

Takuji Nakashima Hiroshima University

Kozo Kitoh Kozo Kitoh Technology, Inc.

Yoshihiro Sasaki AdvanceSoft Co.,Ltd.

Nobuyuki Oshima Hokkaido University

Toshio Kobayashi Japan Automobile Research Institute

2009-01-0180 Scaling Laws in Automotive Aeroacoustics 103 Gerhard Wickern and Martin Brennberger

AUDI AG

2009-01-0181 Window Buffeting Measurements of a Full Scale Vehicle and Simplified Small Scale Models 121

Paul E. Slaboch, Scott С Morris, Ruolong Ma and Daniel Shannon

Uninversity of Notre Dame Mark Gleason and Mitchell Puskarz

Chrysler, LLC

2009-01 -0182 Side Window Buffeting Investigation by Stereoscopic Particle Image Velocimetry in Low and High Turbulence Regime 131

M. Maffei, A. Bianco and G. Carlino Pininfarina S.p.A

2009-01-0183 Helmholtz Resonators Acting as Sound Source in Automotive Aeroacoustics 143

Gerhard Wickern and Martin Brennberger AUDI AG

2009-01-0184 Wind Noise Measurements for Automotive Mirrors 163 Kuo-Huey Chen, Jim Johnson, Urs Dietschi and Bahram Khalighi

General Motors R&D Center

2009-01-0185 Lessons Learned from a Full-Scale Real World Wind Noise Modeling Project 179

Thomas N. Ramsay and Annie Boh Honda R&D Americas, Inc.

2009-01-0331 Proper Orthogonal Decomposition of Flow Structures around a Surface-Mounted Cube Computed with Detached-Eddy Simulation 185

Tomas W. Muld and Gunilla Efraimsson Urine Flow Centre, KTH Aeronautical and Vehicle Engineering

Dan S. Henningson Linne Flow Centre, KTH Mechanics

2009-01-0332 A CFD Approach via Large Eddy Simulation to the Flow Field with Complex Geometrical Configurations: A Study Case of Vehicle Underbody Flows 197

Kozo Kitoh Kozo Kitoh Technology, Inc.

Nobuyuki Oshima Hokkaido University

Makoto Yamamoto Tokyo University of Science

Simone Sebben Volvo Car Corporation

2009-01-0333 Application of Detached-Eddy Simulation for Automotive Aerodynamics Development 209

M. Islam and F. Decker Audi AG, Wind-Tunnel Centre

E. de Villiers, A. Jackson and J. Gines ICON Ltd.

T. Grahs and A. Gitt-Gehrke Volkswagen AG

J. Comas i Font SEAT S.A.

2009-01-0334 Implementation of Immersed Boundary Method for Rapid and Reliable External Flow Simulations in Automotive 223

Reza Ghias and Ashok Khondge ANSYS Inc.

2009-01-0335 Rapid Meshing for CFD Simulations of Vehicle Aerodynamics 245

Keyur Kanade, Ashok Khondge, Ibrahim Yavuz, Padmesh Mandloi, Hamid Ghazialam, Sandeep Sovani and Laz Foley

ANSYS, Inc. Robert Lietz

Ford Motor Company

2009-01-0775 Computational and Experimental Investigation of the Flow Structure and Vortex Dynamics in the Wake of a Formula 1 Tire 261

John Axerio and Gianluca laccarino Center for Turbulence Research, Stanford University

Emin Issakhanian, Kin Lo, Chris Elkins and John Eaton Stanford University

2009-01-0776 The Effect of Center Belt Roughness on Vehicle Aerodynamics 271

Timo Kuthada, David Schröck, Jürgen Potthoff and Jochen Wiedemann

IVK / FKFS Universität Stuttgart

2009-01-0777 The Effects of Detailed Tire Geometry on Automobile Aerodynamics - a CFD Correlation Study in Static Conditions 279

Todd H. Lounsberry and Mark E. Gleason Chrysler LLC

Satheesh Kandasamy, Khaled Sbeih, Richa Mann and Bradley D. Duncan

Exa Corporation

2009-01-0778 Detailed Flow Studies in Close Proximity of Rotating Wheels on a Passenger Car 291

Christoffer Landström and Lennart Löfdahl Chalmers University of Technology

Tim Walker Volvo Car Corporation

2009-01-1155 CFD Analysis of Airflow around the Rider of a Motorcycle for Rider Comfort Improvement 305

Yasushi Takahashi, Yukinori Kurakawa and Haruomi Sugita Honda R&D Co., Ltd. Motorcycle R&D Center

Tsuneaki Ishima Gunma University

Tomio Obokata Tokyo Denki University

2009-01-1157 CFD Study Concerning the Influence of the Underbody Components on Total Drag for a SUV 315

Angel Huminic and Gabriela Huminic Transilvania University of Brasov, Romania

2009-01-1161 Further Analysis of Pickup Trucks Aerodynamics 323 Wael A. Mokhtar

Lake Superior State University Colin P. Britcher

Old Dominion University Robert E. Camp

Lake Superior State University

2009-01 -1162 The Appropriate Use of CFD in the Automotive Design Process 337

A. P. Gaylard Jaguar Land Rover

2009-01-1166 Application of Functional Design Method to Road Vehicle Aerodynamic Optimization in Initial Design Stage 349

Joo-Hyun Rho, Yo-Cheon Ku and Dong-Ho Lee Seoul National University

Jung-Do Kee and Kwang-Yeon Kim Hyundai Kia Motors Company

2009-01 -1167 Aerodynamics of a Pickup Truck: Combined CFD and Experimental Study 355

Scott Holloway, James H. Leyiek and William D. York Clemson University

Bahrain Khalighi General Motors R&D Center

2009-01-1169 Heavy Vehicle Wheel Housing Flows - a Parametric Study 369

David Söderblom and Lennart Löfdahl Chalmers University of Technology

Per Elofsson Scania CV AB

Linus Hjelm Volvo 3P