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Title:

A consistency-driven particle-advection formulation for weakly-compressible smoothed particle hydrodynamics

Document type:
Zeitschriftenaufsatz
Author(s):
Zhu, Yujie; Zhang, Chi; Hu, Xiangyu
Abstract:
The traditional smoothed particle hydrodynamics is not 0th-order consistent and suffers from tensile instability which induces void regions when negative pressure presents in the flow. In order to improve the consistency and stability of the method, we propose a consistency-driven particle-advection formulation, which regularizes the particle configuration by local particle consistency instead of using background pressure. With the target of the normalization condition, the modification of parti...     »
Keywords:
Meshless method; Particle-advection formulation; Tensile instability; Weakly-compressible SPH
Dewey Decimal Classification:
620 Ingenieurwissenschaften
Journal title:
Computers & Fluids
Year:
2021
Journal volume:
230
Pages contribution:
105140
Covered by:
Scopus
Language:
en
Fulltext / DOI:
doi:10.1016/j.compfluid.2021.105140
Publisher:
Elsevier BV
E-ISSN:
0045-7930
Notes:
Funding text The first author is partially supported by Xidian University (China) and the project of National Natural Science Foundation of China (NSFC) (Grant No: 91952110 ). Chi Zhang and Xiangyu Hu would like to express their gratitude to Deutsche Forschungsgemeinschaft for their sponsorship, Germany of this research under grant numbers DFG HU1572/10-1 and DFG HU1527/12-1 .
Submitted:
08.09.2020
Accepted:
25.08.2021
Date of publication:
01.11.2021
TUM Institution:
Lehrstuhl für Aerodynamik und Strömungsmechanik
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