Three-dimensional flow computations with shock fitting (Q1341084)

The paper provides a shock-fitting technique for solving inviscid transonic three-dimensional flows. The continuous flow field is computed by means of an implicit fast Euler solver, which separately integrates compatibility conditions, written in terms of generalized Riemann variables along appropriate bicharacteristic lines. The continuous three- dimensional flow problem is thus reduced to a sequence of simple quasi one-dimensional problems. The shock wave is computed by means of a shock- fitting technique, which enforces the proper shock jumps by an explicit use of the Rankine-Hugoniot equations.