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

研究成果: Article同行評審

19 引文 斯高帕斯(Scopus)

摘要

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.

原文English
頁(從 - 到)1771-1798
頁數28
期刊International Journal for Numerical Methods in Fluids
67
發行號12
DOIs
出版狀態Published - 2011 十二月 30

All Science Journal Classification (ASJC) codes

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

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