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A hybrid finite volume/finite element method for incompressible generalized Newtonian fluid flows on unstructured triangular meshes

         

摘要

This paper presents a hybrid finite volume/finiteelement method for the incompressible generalized Newtonianfluid flow (Power-Law model). The collocated (i.e.non-staggered) arrangement of variables is used on theunstructured triangular grids, and a fractional step projectionmethod is applied for the velocity-pressure coupling.The cell-centered finite volume method is employed to dis-cretizethe momentum equation and the vertex-based finiteelement for the pressure Poisson equation. The momentuminterpolation method is used to suppress unphysical pressurewiggles. Numerical experiments demonstrate that the currenthybrid scheme has second order accuracy in both space andtime. Results on flows in the lid-driven cavity and betweenparallel walls for Newtonian and Power-Law models are alsoin good agreement with the published solutions.

著录项

  • 来源
    《力学学报:英文版》 |2009年第006期|747-760|共14页
  • 作者

    Wei Gao; Ruxun Liu;

  • 作者单位

    Department of Mathematics University of Science and Technology of China 230026 Hefei China;

    School of Mathematical Sciences Inner Mongolia University 010021 Hohhot China;

  • 原文格式 PDF
  • 正文语种 chi
  • 中图分类
  • 关键词

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