Compressibility Effects in Cavity Flows

The aim of this paper is to present the compressibility effects in cavity flows in the case of Joukowsky-Roshko model in a channel for a wedge shaped obstacle. In virtue of some exact formulas expressing the drag coefficient and other elements of the motion, numerical calculations are carried out for wedges of all angles. Tables and diagrams are included. A comparison is made between the results of this study and the analogous results corresponding to the incompressible fluid.