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Title:

An efficient correction method in Riemann SPH for the simulation of general free surface flows

Document type:
Zeitschriftenaufsatz
Author(s):
Ren, Yaru; Lin, Pengzhi; Zhang, Chi; Hu, Xiangyu
Abstract:
In this paper, a new efficient weighted correction method for weakly-compressible smoothed particle hydrodynamics is proposed and successfully implemented in the simulation of violent free-surface flow exhibiting breaking and impact events for the first time. It is well known that the original kernel gradient correction (KGC) encounters numerical instability resulting from matrix inversion. The present method remedies this issue by introducing a weighted average of the KGC matrix and the identit...     »
Keywords:
Free-surface flow; Kernel gradient correction; Numerical stability; SPH
Dewey Decimal Classification:
620 Ingenieurwissenschaften
Journal title:
Computer Methods in Applied Mechanics and Engineering
Year:
2023
Journal volume:
417
Pages contribution:
116460
Covered by:
Scopus
Language:
en
Fulltext / DOI:
doi:10.1016/j.cma.2023.116460
Publisher:
Elsevier BV
E-ISSN:
0045-7825
Notes:
The first author is grateful to the China Scholarship Council, China (CSC) for financially supporting her studies. C. Zhang and X.Y. Hu would like to express their gratitude to Deutsche Forschungsgemeinschaft, Germany (DFG) for their sponsorship of this research under grant numbers HU1527/12-4 .
Submitted:
05.05.2023
Accepted:
16.09.2023
Date of publication:
01.12.2023
TUM Institution:
Lehrstuhl für Aerodynamik und Strömungsmechanik
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