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Ground Simulation in Vehicle Wind Tunnel Testing
Published May 10, 1993 by Society of Automotive Engineers of Japan in Japan
Event: JSAE Spring Conference
Ground simulation is one of the important factors of simulation, the other three of which are Reynolds number effect, blockage effect and model support interference in the wind tunnel testing of automobiles. That is because the boundary conditions of velocity at the ground are quite different between actual driving and in a conventional wind tunnel. Some typical methods of ground simulation, mirror image, basic suction, distributed suction, tangential blowing and moving belt are briefly described in this paper. In addition, two examples of a new concept of ground simulation taking the tire rotation into account are illustrated.