期刊
COMPUTERS & FLUIDS
卷 82, 期 -, 页码 158-164出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.compfluid.2013.05.001
关键词
MPS method; Dynamic Stabilization; Particle method; Tensile instability; Multiphase flows
资金
- Japan Society for the Promotion of Science [24-4720]
- Grants-in-Aid for Scientific Research [12J04720] Funding Source: KAKEN
This technical note presents a simple and effective scheme for Dynamic Stabilization of MPS method. The new scheme, abbreviated as DS, reproduces meticulously adequate repulsive forces to attenuate the interparticle penetration and thus stabilizes the calculations, even for highly deformed flows characterized by tensile stress states. By performing a set of simple two-phase flow simulations, we also show the inappropriateness of the simplified/anti-symmetric MPS pressure gradient models as they may result in predominant excessive repulsive forces and thus being unable to simulate the main flow features. The DS scheme is shown to provide physically sound and computationally stable simulations of such flows. (C) 2013 Elsevier Ltd. All rights reserved.
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