Numerical prediction of transonic viscous flows around airfoils through an Euler/boundary layer interaction method

A semi-inverse viscous/inviscid coupling technique for the calculation of compressible flows is presented. Euler equations in integral form are solved for the inviscid part rrnd integral compressible boundary layer equations in d i i d and inverse form are solved for the viscous one. Interaction is realized using the equivalent sources approarh. The technique has been calculation of the aerodynamic characteristics of air foils both in cruise and take-off or landing configurations. In order to treat the compiez geometries involved in the latter case a multi-block approach has been employed for the solution of Euler equations.