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Title:

A Lagrangian free-stream boundary condition for weakly compressible smoothed particle hydrodynamics

Document type:
Zeitschriftenaufsatz
Author(s):
Zhang, Shuoguo; Zhang, Wenbin; Zhang, Chi; Hu, Xiangyu
Abstract:
This paper proposes the first Lagrangian free-stream boundary condition for weakly-compressible smoothed particle hydrodynamics (WCSPH), significantly decreasing the domain-size effect for simulating flows around static or moving geometries and increasing computational efficiency. The boundary condition is implemented based on several numerical techniques, as follows. First, a spatio-temporal identification and an ensuring technique precisely identify surface particles without misjudgment. Secon...     »
Keywords:
Free-stream; Inlet/outlet; Surface particle identification; Weakly-compressible SPH
Dewey Decimal Classification:
620 Ingenieurwissenschaften
Journal title:
Journal of Computational Physics
Year:
2023
Journal volume:
490
Pages contribution:
112303
Covered by:
Scopus
Fulltext / DOI:
doi:10.1016/j.jcp.2023.112303
Publisher:
Elsevier BV
E-ISSN:
0021-9991
Date of publication:
01.10.2023
TUM Institution:
Lehrstuhl für Aerodynamik und Strömungsmechanik
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