Applications of unstructured hybrid grid method to high-Reynolds number viscous flows

In this paper, an unstructured hybrid grid method is discussed for its capa bility to compute three-dimensional compressible viscous flows of complex g eometry. A hybrid of prismatic and tetrahedral grids is used to accurately resolve the wall boundary layers for high-Reynolds number viscous flows. Th e Navier-Stokes equations for compressible flows are solved by a finite vol ume, cell-vertex scheme. The LU-SGS implicit time integration method is use d to reduce the computational time for very fine grids in boundary layer re gions. Two kinds of one-equation turbulence models are evaluated here for t heir accuracy. The method is applied to computations of transonic flows aro und the ONERA M5 airplane and ONERA M6 wing, and supersonic shock/boundary layer interacting flows inside a scramjet inlet to validate the accuracy an d efficiency of the method. Copyright (C) 1999 John Wiley & Sons, Ltd.