Vehicle aerodynamics has long been investigated almost exclusively by experiment. The »classical« tool was – and still is – the wind tunnel. Nowadays however, numerical methods – computational fluid dynamics (CFD) – are used increasingly. However, before CFD can be applied routinely it has to meet the following pair of conditions:
– the necessary; that the physics are reproduced with the required accuracy, and
– the sufficient; that the development objective is achieved more quickly than with the wind tunnel.
The publication shows how far CFD has come towards fulfilling both conditions. The different methods in numerical aerodynamics are explained, along with their merits and drawbacks, and the importance of experimental validation is emphasised. Prospects for improving the quality of CFD in the near future are highlighted.
Computation in Vehicle Aerodynamics: Highlights from History, Present Status, and Future Prospects – Advanced Turbulence Models for Vehicle Aerodynamics – Lattice Boltzmann Methods – CFD: Don´t Forget the Physics! – CFD: Verification and Validation – External Aerodynamics – Approach to Vehicle Soiling – Computational Aero-acoustics – Synergy and Potential of 1D and 3D Simulation in the Development Process of Cooling Air Flow in Vehicles – Aspects of Underhood Thermal Analysis – Flow Inside Passenger Compartment – Investigation on Wind Tunnel Interference Effects Using CFD – Computer Environment, Clusters, Supercomputers, Storage, Visualization – CFD and Wind Tunnel: Competitve Tools or Supplementary Use
This book is intended for engineers, physicists, and mathematicians working on vehicle aerodynamics. It will provide them with detailed information about the state of the art in numerical fluid dynamics. It is also addressed to people in research organizations, at universities and agencies. It should be of interest to technical journalists and, last but not least, to students.
are a team of experts from the automobile industry, code developers and vendors, research organizations, and academia. All have contributed substantially to vehicle aerodynamics and specifically to numerical methods, and are currently active in the subject they are presenting.
Professor Dr.-Ing. Jochen Wiedemann is director of the Institut für Kraftfahrwesen und Verbrennungsmotoren (IVK), Stuttgart University, and the Forschungsinstitut für Kraftfahrwesen und Fahrzeugmotoren Stuttgart (FKFS).
Dr.-Ing. Wolf-Heinrich Hucho is a consultant in applied aerodynamics. He is the editor of »Aerodynamik des Automobils«/»Aerodynamics of Road Vehicles« and the author of »Aerodynamik der stumpfen Körper«.