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

Xiaoxing Liu, Koji Morita, Shuai Zhang

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)467-487
Number of pages21
JournalComputer Methods in Applied Mechanics and Engineering
Volume339
DOIs
Publication statusPublished - Sep 1 2018

All Science Journal Classification (ASJC) codes

  • Computational Mechanics
  • Mechanics of Materials
  • Mechanical Engineering
  • Physics and Astronomy(all)
  • Computer Science Applications

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