Consistent inlet and outlet boundary conditions for particle methods

Fangyuan Hu, Zidi Wang, Tasuku Tamai, Seiichi Koshizuka

研究成果: Article査読

4 被引用数 (Scopus)

抄録

In this paper, simple and consistent open boundary conditions are presented for the numerical simulation of viscous incompressible laminar flows. The present approach is based on an arbitrary Lagrangian-Eulerian particle method using upwind interpolation. Three kinds of inlet/outlet boundary conditions are proposed for particle methods, a pressure specified inlet/outlet condition, a velocity profile specified inlet/outlet condition, and a fully developed flow outlet condition. These inlet/outlet conditions are realized by using boundary particles and modification to the physical value such as velocity. Poiseuille flows, flows over a backward-facing step, and flows in a T-shape branch are calculated. The results are compared with those of mesh-based methods such as the finite volume method. The method presented herein exhibits accuracy and numerical stability.

本文言語English
ページ(範囲)1-19
ページ数19
ジャーナルInternational Journal for Numerical Methods in Fluids
92
1
DOI
出版ステータスPublished - 2020 1 1
外部発表はい

ASJC Scopus subject areas

  • 計算力学
  • 材料力学
  • 機械工学
  • コンピュータ サイエンスの応用
  • 応用数学

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