Hybrid Procedures for Computing General Viscous Flows

Abstract

In the computational fluid-dynamics community, the general viscous flow, i.e., a flow in which viscous separation is an important feature, is receiving a great deal of current attention. Because of its fundamental nature and its practical importance, the problem of finding predictive methods for general viscous flows has been traditionally a focal point of research in fluid dynamics. It has long been recognized that the mathematical difficulties attendant on the analytical solution of the Navier-Stokes equations describing the general viscous flows are formidable. The numerical approach offers the only promise, for the foreseeable future, of accurate quantitative solutions under reasonably general circumstances [1.18, 1.19].