Abstract
The influence of sweep on the effect of passive control of shock-wave / boundary-layer interaction was investigated experimentally and numerically. Passive control was found to have the same effect as observed in other, two-dimensional, investigations. A pressure plateau was formed upstream of the shock and both the displacement and momentum thickness of the boundary-layer downstream of the interaction were increased significantly by the introduction of passive control. Pressure gradients through the interaction were reduced. The variation of sweep was found to cause no significant changes in the effects of passive control. The numerical investigation was also performed using a three-dimensional Navier-Stokes code modelling the wall mass flow through the porous plate with a new empirical relationship. Good agreement was found between the experimental and numerical data with and without passive control.
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