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Titel:

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

Dokumenttyp:
Zeitschriftenaufsatz
Autor(en):
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...     »
Stichworte:
Free-surface flow; Kernel gradient correction; Numerical stability; SPH
Dewey Dezimalklassifikation:
620 Ingenieurwissenschaften
Zeitschriftentitel:
Computer Methods in Applied Mechanics and Engineering
Jahr:
2023
Band / Volume:
417
Seitenangaben Beitrag:
116460
Nachgewiesen in:
Scopus
Sprache:
en
Volltext / DOI:
doi:10.1016/j.cma.2023.116460
Verlag / Institution:
Elsevier BV
E-ISSN:
0045-7825
Hinweise:
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 .
Eingereicht (bei Zeitschrift):
05.05.2023
Angenommen (von Zeitschrift):
16.09.2023
Publikationsdatum:
01.12.2023
TUM Einrichtung:
Lehrstuhl für Aerodynamik und Strömungsmechanik
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