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Titel:

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

Dokumenttyp:
Zeitschriftenaufsatz
Autor(en):
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...     »
Stichworte:
Free-stream; Inlet/outlet; Surface particle identification; Weakly-compressible SPH
Dewey Dezimalklassifikation:
620 Ingenieurwissenschaften
Zeitschriftentitel:
Journal of Computational Physics
Jahr:
2023
Band / Volume:
490
Seitenangaben Beitrag:
112303
Nachgewiesen in:
Scopus
Volltext / DOI:
doi:10.1016/j.jcp.2023.112303
Verlag / Institution:
Elsevier BV
E-ISSN:
0021-9991
Publikationsdatum:
01.10.2023
TUM Einrichtung:
Lehrstuhl für Aerodynamik und Strömungsmechanik
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