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A fractional step local boundary integral element method for unsteady two-dimensional incompressible flow

机译:非定常二维不可压缩流的分数步局部边界积分法

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摘要

A meshless local boundary integral method is used to analyse incompressible fluid flow in two-dimensional domains. The method solves the incompressible Navier-Stokes equations in terms of the primitive variables using the characteristic-based split scheme. The basic equations are derived via interpolation using radial basis functions. Three test cases are presented here: unsteady Couette flow and the problems of a lid-driven cavity and a backward-facing step. The procedure produces stable solutions with results comparable to those of other conventional methods.
机译:使用无网格局部边界积分方法来分析二维域中不可压缩的流体流动。该方法使用基于特征的拆分方案根据原始变量求解不可压缩的Navier-Stokes方程。基本方程式是通过使用径向基函数进行插值得出的。这里介绍了三个测试用例:不稳定的Couette流动以及盖子驱动型腔和朝后步骤的问题。该程序可产生稳定的溶液,其结果可与其他常规方法相比。

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  • 来源
  • 作者单位

    University of Zilina, Faculty of Civil Engineering, Department of Geotechnics, Univerzitna 8215/1, 010 26 Zilina, Slovakia;

    University of Zilina, Faculty of Civil Engineering, Department of Geotechnics, Univerzitna 8215/1, 010 26 Zilina, Slovakia;

    University of Zilina, Faculty of Civil Engineering, Department of Geotechnics, Univerzitna 8215/1, 010 26 Zilina, Slovakia;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    LBIEM; Incompressible fluid flow; Meshless method; Radial basis functions;

    机译:LBIEM;不可压缩的流体流;无网格方法;径向基函数;

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