科研之友
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摘要
The Harten-Lax-van Leer scheme is popularly used in the CFD community. However, oscillations are observed from shock tube problems for stiffened gases when the adiabatic index is greater than 3. To understand this phenomenon, the dissipation effect of the scheme is evaluated quantitatively in terms of dissipation matrices. We have proven and numerically demonstrated that lack of positive definiteness is the root of numerical defects.
- 出版日期2014
- 单位北京应用物理与计算数学研究所; 北京师范大学
