Initial pressure distribution due to jet impact on a rigid body

The analysis in this paper shows that, after an impulse due to a two-dimens ional jet having velocity U and density rho hitting a rigid body, the initi al pressure distribution over the wall has the constant value rhoU(2) relat ive to the ambient pressure. It also reveals that a discontinuity exists in the pressure at the intersection of the surface of the body and the surfac e of the jet. These results have been confirmed by a numerical solution bas ed on a boundary element method. (C) 2001 Academic Press.