Computation of incompressible flows with immersed bodies by a simple ghost cell method

Dartzi Pan, Tzung Tza Shen

研究成果: Article同行評審

29 引文 斯高帕斯(Scopus)

摘要

The incompressible Navier-Stokes equations are solved by an implicit pressure correction method on Cartesian meshes with local refinement. A simple and stable ghost cell method is developed to treat the boundary condition for the immersed bodies in the flow field. Multigrid methods are developed for both velocity and pressure correction to enhance the stability and convergence of the solution process. It is shown that the spatial accuracy of the method is second order in L2 norm for both velocity and pressure. Various steady and unsteady flows over a 2D circular cylinder and a 3D sphere are computed to validate the present method. The capability of the present method to treat a moving body is also demonstrated.

原文English
頁(從 - 到)1378-1401
頁數24
期刊International Journal for Numerical Methods in Fluids
60
發行號12
DOIs
出版狀態Published - 2009 8月 30

All Science Journal Classification (ASJC) codes

  • 計算力學
  • 材料力學
  • 機械工業
  • 電腦科學應用
  • 應用數學

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