An advanced moving particle semi-implicit method for accurate and stable simulation of incompressible flows

Xiaoxing Liu, Koji Morita, Shuai Zhang

研究成果: ジャーナルへの寄稿学術誌査読

28 被引用数 (Scopus)

抄録

An advanced moving particle semi-implicit (MPS) method for the simulation of incompressible flows that provides enhanced accuracy and stability is proposed. Up to now, existing high-order accurate MPS pressure gradient schemes suffer from instability produced by attractive pressure gradient while some stabilized pressure gradient schemes have the shortcomings of large discretization error. We propose a high-order stabilized gradient model in which first-order Taylor-series consistency is ensured and stability is guaranteed by purely repulsive pressure gradient. Laplacian model and divergence model are modified and enable accurate and stable solution for the pressure Poisson equation (PPE). The proposed MPS scheme provides a more accurate and stable simulation of incompressible flows. Several two-dimensional numerical simulations are presented to demonstrate the enhanced performance of the proposed MPS method.

本文言語英語
ページ(範囲)467-487
ページ数21
ジャーナルComputer Methods in Applied Mechanics and Engineering
339
DOI
出版ステータス出版済み - 9月 1 2018

!!!All Science Journal Classification (ASJC) codes

  • 計算力学
  • 材料力学
  • 機械工学
  • 物理学および天文学(全般)
  • コンピュータ サイエンスの応用

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