A pressure correction method for fluid-particle interaction flow: Direct-forcing method and sedimentation flow

San Yih Lin, Ya Hsien Chin, Jeu Jiun Hu, Yi Cheng Chen

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

A direct-forcing pressure correction method is developed to simulate fluid-particle interaction problems. In this paper, the sedimentation flow is investigated. This method uses a pressure correction method to solve incompressible flow fields. A direct-forcing method is introduced to capture the particle motions. It is found that the direct-forcing method can also be served as a wall-boundary condition. By applying Gauss's divergence theorem, the formulas for computing the hydrodynamic force and torque acting on the particle from flows are derived from the volume integral of the particle instead of the particle surface. The order of accuracy of the present method is demonstrated by the errors of velocity, pressure, and wall stress. To demonstrate the efficiency and capability of the present method, sedimentations of many spherical particles in an enclosure are simulated.

Original languageEnglish
Pages (from-to)1771-1798
Number of pages28
JournalInternational Journal for Numerical Methods in Fluids
Volume67
Issue number12
DOIs
Publication statusPublished - 2011 Dec 30

All Science Journal Classification (ASJC) codes

  • Computational Mechanics
  • Mechanics of Materials
  • Mechanical Engineering
  • Computer Science Applications
  • Applied Mathematics

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