Numerical Techniques and Solutions for Axisymmetrical Viscous Compressible Flows

摘要

The purpose of the investigation was to develop numerical techniques for solving axisymmetrical, viscous, compressible flow around blunt bodies. Solutions were limited to systems of ideal gases with laminar unseparated boundary layers. The bow wave was represented by a moving discontinuity. The remainder of the system was represented by second order accuracy, time dependent difference equations. In this investigation the difference equations were derived from basic time dependent, viscous compressible flow equations that were transformed into body related coordinates. The addition of stabilizing terms to basic difference equations was used to achieve numerical stability. Numerical experiments were performed to minimize the effect of the stabilizing terms on the results. (Author)