Open AccessMulti-dimensional dissipation strategy within advection upstream splitting methods in hypersonic flows
Author(s) -
Shusheng Chen,
Hua Yang,
Fangjie Cai,
Zhenghong Gao
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1786/1/012050
Subject(s) - hypersonic speed , advection , dissipation , grid , shock (circulatory) , mach number , mechanics , robustness (evolution) , upstream (networking) , computer science , physics , mathematics , aerospace engineering , engineering , geometry , thermodynamics , medicine , computer network , biochemistry , chemistry , gene
The work develops the multi-dimensional dissipation strategy within advection upstream splitting methods (AUSM) in hypersonic flows based on the affordable shock-stable item by Chen et al. (J. Comput. Phys. 373 (2018) 662-672). This strategy is related to the sear velocity difference and the pressure-based sensing function. It strengthens the robustness of AUSM-family schemes against shock anomalies and meantime preserves shear layer. A series of numerical cases illuminate its potential capability for hypersonic flows, particularly in the extreme situations such as the large aspect ratio of cells, skewed non-orthogonal grid, and unstructured grid.