FINITE-ELEMENT SIMULATION OF INCOMPRESSIBLE VISCOUS FLOWS IN MOVING MESHES

被引:1
|
作者
Sheu, Tony W. H. [1 ,2 ,3 ]
Hsu, M. C. [1 ]
机构
[1] Natl Taiwan Univ, Dept Engn Sci & Ocean Engn, Taipei 10617, Taiwan
[2] Natl Taiwan Univ, TIMS, Taipei 10617, Taiwan
[3] Natl Taiwan Univ, CQSE, Taipei 10617, Taiwan
关键词
BACKWARD-FACING STEP; CONVECTION-DOMINATED FLOWS; NAVIER-STOKES EQUATIONS; BOUNDARY-CONDITION; COMPUTATIONAL ACOUSTICS; DECOMPOSITION METHOD; FLUID-FLOW; SCHEMES; CYLINDERS; RE=800;
D O I
10.1080/10407790902970049
中图分类号
O414.1 [热力学];
学科分类号
摘要
This study aims to develop a two-dimensional dispersion relation-preserving Petrov-Galerkin finite-element model for effectively resolving convective instability in the simulation of incompressible viscous fluid flows in moving meshes. The developed test functions, which accommodate better dispersive nature, are justified through the convection-diffusion equation and the Navier-Stokes equations. For moving-boundary problems, the fluid flows over an oscillating square cylinder and are investigated in the contraction-and-expansion channel. Through several benchmark tests, the dispersion relation-preserving Petrov-Galerkin finite-element model developed within the arbitrary Lagrangian-Eulerian formulation has been shown to be highly reliable to investigate a wide range of incompressible flow problems in moving meshes.
引用
收藏
页码:38 / 57
页数:20
相关论文
共 50 条