On the Structure of Internal Dissipation of Composite CompactSchemes for Gasdynamic Simulation

摘要

The structure of the internal dissipation terms in composite compact schemes intended forgasdynamic simulation is considered. The main cause of the insufficient stability of high-order accu-rate schemes is indicated. A method for controlling the dissipative properties of schemes is proposedthat makes it possible to compute compressible gas flows with strong shock waves. The supersonic tur-bulent unsteady flow past a two-dimensional cavity directed toward the stream is computed.