A Further Evaluation of the Ground-Plane Suction Method for Ground Simulation in Automotive Wind Tunnels

Paper #:
  • 940418

Published:
  • 1994-03-01
Citation:
Carr, G. and Eckert, W., "A Further Evaluation of the Ground-Plane Suction Method for Ground Simulation in Automotive Wind Tunnels," SAE Technical Paper 940418, 1994, https://doi.org/10.4271/940418.
Pages:
18
Abstract:
For wind-tunnel measurements of drag and lift on passenger and racing-car models, correlations have been established between results obtained with a stationary ground-plane, with and without boundary-layer-suction, and a moving ground-plane.Compared with the stationary-ground-plane results without suction, the application of suction caused significant reductions in lift. These reductions were smaller, though, than those obtained with the moving-ground-plane, particularly in the case of rear-axle lift force. The influence of ground-plane suction on drag was also less than that of the moving ground-plane, which induced small drag increases.
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