Aerodynamics, Vehicle. SAEInternational SP Warrendale, PA Published by: SAE International 400 Commonwealth Drive
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1 Vehicle Aerodynamics, 2010 SP-2269 SAEInternational Published by: SAE International 400 Commonwealth Drive Warrendale, PA USA Phone: (724) Fax: (724) TIB/UB Hannover 89 April
2 TABLE OF CONTENTS The BMW AVZ Wind Tunnel Center 1 Edward Duell, Amir Kharazi and Sam Muller Jacobs Welf Ebeling and Edzard.Mercker BMW AG Computational Study of Flow in the Underbody Diffuser for a Simplified Car Model -33 Angel Huminic and Gabriela Huminic Transilvania University of Brasov The Application of Particle Image Velocimetry in Automotive Aerodynamics 45 Martin A. Passmore, Adrian Spencer, Daniel Wood and Lydia Jowsey Loughborough Univ. P S Newnham RLE International Investigation of the Bed and Rear Flap Variation for a Low-Drag Pickup Truck using Design of Experiments 57 Jongsoo Ha, Shinkyu Jeong and Shigeru Obayashi Tohoku University A Computational Approach to Evaluate the Vehicle Interior Noise from Greenhouse Wind Noise Sources 67 David J. Lepley and Anna Graf Nissan Technical Center NA Inc. Robert Powell and Sivapalan Senthooran Exa Corp A New Approach to Analyzing Cooling and Interference Drag 79 Gregor Tesch and Rainer Demuth BMW Group Nikolaus Adams Lehrstuhl fur Aerodynamik, Technische Universitat Munchen Integrated Numerical and Experimental Approach to Determine the Cooling Air Mass Flow in Different Vehicle Development Stages 93 Stefan Wille, Timo Kuthada, Nils Widdecke and Jochen Wiedemann FKFS Holger Maier and Andreas Koller Porsche AG
3 Interference between Engine Bay Flow and External Aerodynamics of Road Vehicles 107 Lasse Christoffersen and Lennart Lbfdahl Chalmers University of Technology Anders Jonson Volvo Car Corporation The Effects of Unsteady On-Road Flow Conditions on Cabin Noise 121 Nicholas Oettle, David Sims-Williams and Robert Dominy Durham Univ. Charles Darlington, Claire Freeman and Peter Tindall Investigation of Aerodynamic Performance due to the Interaction between the Rear Diffuser Angle and the Cooling Airflow Outlet 131 Chen-Guang Lai, Yasuaki Kohama, Shigeru Obayashi and Jeong Shinkyu Tohoku Univ., Japan The Optimization of Roof Trailing Edge Geometry of a Simple Square-Back 151 Rob Littlewood and Martin Passmore Loughborough University Aerodynamic Shape Improvement Based on Surface Pressure Gradients in the Stream-wise and the Transverse Directions 161 Taeyoung Han and Youngtae Kim GM The Effect of Base Bleed and Rear Cavities of an SUV 169 on the Drag YA. Irving Brown, S. Windsor and A.R Gaylard Automotive Aerodynamic Design Exploration Employing New Optimization Methodology Based on CFD 187 Kenichi Ando and Akio Takamura Honda R&D Co., Ltd. Automobile R&D Center Isao Saito PSG Co., Ltd Effects of Ground Simulation on the Aerodynamic Coefficients of a Production Car in Yaw Conditions 197 Christoffer Landstrom Chalmers Univ. of Technology Tim Walker Volvo Car Corp, Lennart Lofdahl Chalmers
4 Further CFD Studies for Detailed Tires using Aerodynamics Simulation with Rolling Road Conditions 211 Bradley D. Duncan, Satheesh Kandasamy and Khaled Sbeih Exa Corporation Todd H. Lounsberry and Mark E. Gleason Chrysler Group LLC Aerodynamic Drag Simulation and Validation of a Crossover 231 Vyankatesh Bagal and Aditya Mulemane Mahindra & Mahlndra Ltd Numerical Simulation with a DES Approach 239 Emmanuel Guilmineau Ecole Centrale De Nantes A Wind Tunnel Study Correlating the Aerodynamic Effect of Cooling Flows for Full and Reduced Scale Models of a Passenger Car 253 Lasse Christoffersen and Christoffer Landstrom Chalmers Univ. of Technology Tim Walker Volvo Car Corporation CFD Approach to Evaluate Wind-Tunnel and Model Setup Effects on Aerodynamic Drag and Lift for Detailed Vehicles 273 Oliver Fischer, Timo Kuthada, Edzard Mercker and Jochen Wiedemann IVK/FKFS Univ. Stuttgart Bradley Duncan Exa Corp HPC-LES for Unsteady Aerodynamics of a Heavy Duty Truck in Wind Gust - 1st report: Validation and Unsteady Flow Structures 289 Makoto Tsubokura and Kaito Takahashi Hokkaido Univ. Tomofuyu Matsuuki Isuzu Advanced Engineering Center, Ltd. Takuji Nakashima and Takeshi Ikenaga Kozo Kitoh Kozo Kitoh Technology, Inc CFD-based Modelling of Flow Conditions Capable of Inducing Hood Flutter 307 Adrian Gaylard and Martin Beckett Joaquin Ivan Gargoloff and Bradley D. Duncan EXA Corporation
5 HPC-LES for Unsteady Aerodynamics of a Heavy Duty Truck in Wind Gust 2nd report: Coupled Analysis - with Vehicle Motion Takuji Nakashima Makoto Tsubokura Hokkaido Univ. Takeshi Ikenaga and Yasuaki Doi A Relationship between Lift and Lateral Aerodynamic Characteristics for Passenger Cars... Jeff Howell Tata Motors European Technical Centre Joshua Baden Fuller Loughborough University
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Vehicle Aerodynamics,
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
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