Interference between Engine Bay Flow and External Aerodynamics of Road Vehicles

Paper #:
  • 2010-01-0288

Published:
  • 2010-04-12
Citation:
Christoffersen, L., Löfdahl, L., and Jönson, A., "Interference between Engine Bay Flow and External Aerodynamics of Road Vehicles," SAE Technical Paper 2010-01-0288, 2010, https://doi.org/10.4271/2010-01-0288.
Pages:
13
Abstract:
This study focus on the aerodynamic influence of the engine bay packaging, with special emphasis on the density of packaging and its effect on cooling and exterior flow. For the study, numerical and experimental methods where combined to exploit the advantages of each method. The geometry used for the study was a model of Volvo S60 sedan type passenger car, carrying a detailed representation of the cooling package, engine bay and underbody area. In the study it was found that there is an influence on the exterior aerodynamics of the vehicle with respect to the packaging of the engine bay. Furthermore, it is shown that by evacuating a large amount of the cooling air through the wheel houses a reduction in drag can be achieved.
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