Compressible Potential Flow Past Elliptic Symmetrical Cylinders at Zero Angle of Attack and with No Circulation

摘要

A group of profiles is investigated, which are of interest for the wind tunnel corrections of compressible flows and which allow application of - at least - the second approximation of the Janzen-Rayleigh method in closed form. The profiles in question are ellipsoidal symmetrical cylinders, located In the center of a tunnel with fixed walls, which have - in incompressible flow - for each thickness ratio double the flow velocity as maximum velocity. In the numerical solution, the maximum velocity at the profile and the tunnel wall as well as the entry of sonic velocity is computed.