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CCS Seminar - ACES Presentation
John Wanderer (Former ACES Trainee)
EXA Corporation - Burlington, MA
Friday - November 21, 2008
12:00 noon
Physics Research Building - Room 595
3 Cummington Street

“Use of Computational Fluid Mechanics in the Ground Transportation Industry”

The use of computational fluid dynamics (CFD) for the design and optimization of ground transportation vehicles has been prohibitively expensive in the past, even compared to the high cost of wind tunnel testing. However, modern computers and new efficient algorithms have in the last decade or so made possible extensive use of CFD in the design process of ground transportation vehicles such as passenger cars, large trucks and even agricultural vehicles. Typical wind tunnel measurements such as lift and drag can now be predicted without a prototype vehicle saving millions of dollars in fabrication costs. Further design optimizations such as engine cooling effectiveness and wind noise can now also be predicted with sufficient accuracy that the design can be modified to correct serious problems at a much early stage of the design process. This talk will give an overview of the algorithms that have made these advancements possible as well as a feel for the typical applications of CFD in the ground transportation industry. Simulation results from real car simulations, with complete under-hood and under-body geometries will be shown.











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