Role of CFD in Aeronautical Engineering (No. 14)-AUSM Type Upwind Schemes-

Abstract

Upwind scheme is one of the most important parts of modern numerical scheme for gas dynamics. No scheme, however, is perfect on accuracy, robustness and efficiency. Among a lot of schemes, AUSM (Advection Upstream Splitting Method) developed by Liou and Steffen satisfy many requirement. Today, there are many practical scheme which can be written in the same form with AUSM. These schemes are called AUSM type schemes. Some AUSM type schemes are shown and characteristics of these schemes are investigated in this report. Several improvements of SHUS (Simple High resolution Upwind Scheme), which is one of the AUSM type schemes and has unique character in them, are also shown.