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A local boundary integral method for two-dimensional particle-driven gravity currents simulation

机译:二维粒子驱动重力流模拟的局部边界积分法

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摘要

A meshless local boundary integral equation method (LBIEM) is used to analyse gravity currents flow in two-dimensional domains. The method solves the incompressible Navier-Stokes equations with a transport equation for the particle concentration. The characteristic-based split scheme is used to solve the governing equations. The LBIEM basic equations are derived via interpolation using radial basis functions. Two numerical test cases are presented here; both are focused on the typical lock-exchange channel flow. The LBIEM procedure produces stable solutions with results comparable to those of other conventional methods.
机译:采用无网格局部边界积分方程法(LBIEM)分析二维区域中的重力流。该方法用粒子浓度的输运方程求解不可压缩的Navier-Stokes方程。基于特征的拆分方案用于求解控制方程。 LBIEM基本方程式是使用径向基函数通过插值法导出的。这里介绍了两个数值测试用例。两者都专注于典型的锁交换通道流。 LBIEM程序可产生稳定的溶液,其结果可与其他常规方法相比。

著录项

  • 来源
    《Engineering analysis with boundary elements》 |2015年第7期|119-128|共10页
  • 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;

    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; Density current;

    机译:LBIEM;不可压缩的流体流;无网格方法;径向基函数;密度电流;

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