Preliminary Investigation of the Influence of a Ground-Plane Boundary Layer on the Aerodynamic Characteristics of Road Vehicle Models Tested Over a Fixed Ground

Paper #:
  • 960675

Published:
  • 1996-02-01
Citation:
Ahmadi, M. and Garry, K., "Preliminary Investigation of the Influence of a Ground-Plane Boundary Layer on the Aerodynamic Characteristics of Road Vehicle Models Tested Over a Fixed Ground," SAE Technical Paper 960675, 1996, https://doi.org/10.4271/960675.
Author(s):
Affiliated:
Pages:
9
Abstract:
Results from a series of experimental measurements are presented in order to investigate the influence of the ground-plane boundary layer on the overall characteristics of a scale model road vehicle. The wind tunnel model is a generic bluff body which has a streamlined forebody, simple wheel representation and interchangeable rear end sections.The aerodynamic forces and moments were measured via an external 3-component balance at a free stream velocity of 24 m/s. corresponding to Reynolds number of 5.5 × 105 based on model length, over a range of ride heights and yaw angles. The ground plane boundary layer thickness was varied artificially. The influence of wheels and underbody roughness were also investigated.
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