Simple algorithms of CFD for compressible flows

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SST-CFDワークショップ.次世代超音速機の数値シミュレーション利用技術に関する国際ワークショップ 航空宇宙技術研究所 20000117-20000119 東京 日本

SST-CFD Workshop. International Workshops on Numerical Simulation Technology for Design of Next Generation Supersonic Civil Transport National Aerospace Laboratory 20000117-20000119 Tokyo Japan

Upwind scheme is one of the most important components 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 et al. satisfies many requirement. Today, there are many practical scheme which can be written in the same form with AUSM. We call these schemes as AUSM type schemes. In order to investigate the key of favorable feature of AUSM type schemes, three new simple schemes are presented and numerically tested. It is shown that a new scheme (ST-AUSM: Simplest Advection Upstream Splitting Method) is simpler than other schemes, however, it exhibits better results.

資料番号: AA0063609049

レポート番号: JAXA-SP-06-029E

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