TURBULENT-FLOW COMPUTATIONS ON 3D UNSTRUCTURED GRIDS

An edge-based finite element method is presented for the simulation of compressible turbulent flows on unstructured tetrahedral grids. A two equation k-omega turbulence model is employed and the standard Galerk in approach is used for spatial discretisation. Stabilisation of the r esulting procedure is achieved by the addition of an appropriate diffu sion. An explicit multistage time-stepping scheme is used to advance t he solution in time to steady state. The performance of the algorithm is demonstrated for the simulation of a high Reynolds number transonic separated flow over a wing. (C) 1998 Elsevier Science B.V. All rights reserved.