A Robust Riemann Solver Without Artificial Intervention

doi:10.19596/j.cnki.1001-246x.7630

Abstract

Abstract: In order to improve robustness of multi-fluid-channel scheme on average of volume (MFCAV) and overcome its artificial intervention in actual application, a new HLLCM scheme was designed on a moving mesh, which restrains non-physical mesh tangling without artificial intervention. Numerical results show that the HLLCM scheme maintains one-dimensional spherical symmetry on equal-angle-zoned grids which has better numerical effects in keeping mesh quality and energy conservation in complex applications than MFCAV scheme.

Key words: artificial intervention, HLLCM scheme, Riemann solver, arbitrary Lagrangian Eulerian method

CLC Number:

REN Jian, SHEN Zhijun, YAN Wei, YUAN Guangwei. A Robust Riemann Solver Without Artificial Intervention[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 2018, 35(1): 1-12.

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