Regulation of numerical diffusion for compressible flow computations

Abstract

This thesis presents a study on the effects of numerical diffusion in the computation of both inviscid and viscous compressible flows and developments of new methods for accurate computation of compressible flows through numerical diffusion regulation The study revolves around the numerical diffusion associated with the Diffusion regulated Local Lax Friedrichs DRLLF scheme It is shown that the most appropriate level of numerical diffusion of the scheme is problem dependent and it is to be c