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Experimental Investigation of the Near Wake of a Sport Utility Vehicle (SUV)

Summary: Experimental Investigation of the Near Wake of a
Sport Utility Vehicle (SUV)
Abdullah M. Al-Garni and Luis P. Bernal
Department of Aerospace Engineering
University of Michigan
Ann Arbor, MI 48109-2140
Prepared for:
Larry Butz and Bahram Khalighi
GM Research and Development Center
Warren, MI 48090-9055
Report Number - N002139-05
02 April 2003
University of Michigan Aerospace Engineering Report # N002139-05
The flow in the near wake of SUVs is very unsteady and characterized by separated shear
layers from the top, bottom and sides of the vehicle. A better understanding of the unsteady
nature of this flow can lead to low drag coefficient, thus reducing the fuel consumption. In
addition, separated shear layers can generate aerodynamic noise which in turn may influence the
level of comfort in the passenger compartment. The complexity of the flow makes drag


Source: Al-Garni, Abdullah M. - Department of Aerospace Engineering, King Fahd University of Petroleum and Minerals


Collections: Engineering