Methods for investigating supersonic ground effect in a blowdown wind tunnel

Author: Doig G.  

Publisher: Springer Publishing Company

ISSN: 0938-1287

Source: Shock Waves, Vol.18, Iss.2, 2008-07, pp. : 155-159

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Abstract

Two methods to experimentally investigate supersonic ground effect problems in a wind tunnel have been examined to determine their relative effectiveness compared to a more realistic, but physically unfeasible, representation of the ground effect by means of a moving ground. Experimental data were compared with the results of numerical simulations. The latter, once validated against pressure data from the wind tunnel, confirmed that generally a symmetry technique is more suitable than an elevated ground approach.