ACCURACY ASSESSMENT OF UPWIND ALGORITHMS FOR STEADY-STATE COMPUTATIONS

Upwind schemes have been evaluated for their accuracy based upon stead y-state solutions of Euler and Navier-Stokes equations. It includes th e flux-vector splitting schemes due to Steger-Warming and Van Leer, fl ux-difference splitting schemes due to Roe and Osher, and the hybrid s chemes, AUSM (Advection Upstream Splitting method) and HUS (Hybrid Upw ind Splitting). Computations for inviscid and viscous compressible flo ws that are well documented in literature have been carried out in a u nified framework. Comparisons of lift, drag, skin-friction and beat-tr ansfer coefficients have been established with reference computational and experimental results. (C) 1998 Elsevier Science Ltd. All rights r eserved.