On shock-capturing schemes using artificial wind
On shock-capturing schemes using artificial wind
复制标题
利用人工风捕捉冲击的方案
DOI:
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发表时间:
1999
期刊:
影响因子:
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通讯作者:
K. Takayama
中科院分区:
文献类型:
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作者:
I. Sokolov;E. Timofeev;J. Sakai;K. Takayama
Abstract. We introduce and apply a new way for the construction of efficient non-oscillatory shock-capturing schemes for fluid dynamic and magneto-hydro-dynamic simulations. The basic idea is to solve the governing equations in different steadily moving frames of reference chosen in such a way that the flow would be supersonic there resulting in simple upwind formulas for fluxes across control volume faces. An extra velocity (artificial wind) is added to the velocity of the flow under simulation when the system of coordinates is changed. The approach allows to simplify existing schemes and to get new modifications. Test problems demonstrate that the derived schemes provide accurate results while being simple and efficient.