A hybird scheme is constructed by Steger-Warming Splitting and its modified algorithm.The enlargment factor of pressure difference is used to prompt ability of flow field resolution.Meanwhile,a special matrix splitting method is adopted and makes matrices very easy to compute.Three examples of two-dimensional fluid flows containing shocks and/or boundary layer demonstrate the efficiency and accuracy of this new scheme.

A new shock wave reflection phenomenon-moving oblique shock diffrection obstacle is investigated. The computation results of normal shock reflection on a wedge is compared with experimental results. Simulation results are given as well for unsteady flow field of moning oblique shock wave diffraction over a wavy wall. A flow field pattern, that's induced by multi shock interaction of oblique shock reflection, is displayed.