SIMULATION OF SUPERSONIC FLOW IN A CHANNEL WITH A STEP ON NONSTRUCTURED MESHES WITH THE USE OF THE WENO SCHEME

A numerical simulation of flow in a channel with a right-angled step has been performed on nonstructured meshes having different resolving powers with the use of high-accuracy WENO schemes. The calculated shock-wave structure of this fl ow was compared with analogous structures described in the literature. Accuracy criteria of numerical calculations, associated with the position of shock-wave structures, are discussed. Recommendations on practical use of high-accuracy difference schemes for calculations on nonstructured meshes are given.
   
Author:  P. V. Bulat and K. N. Volkov
Keywords:  channel, step, supersonic fl ow, numerical simulation, WENO scheme
Page:  877