Modified Moving Particle Semi-Implicit Meshless Method for Incompressible Fluids

被引：1
|
作者：
Guo, Jun [1 ]
Tao, Zhi [1 ]
机构：
[1] Beijing Univ Aeronaut & Astronaut, Div 402, Dept Jet Prop, Beijing 100083, Peoples R China
来源：
JOURNAL OF THERMAL SCIENCE | 2004年 / 13卷 / 03期
基金：
中国国家自然科学基金;
关键词：
meshless method; incompressible fluids; numerical diffusion; kernel function;
D O I：
10.1007/s11630-004-0036-1
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
A modified moving particle semi-implicit method (MPS) is presented for incompressible fluids. Modification is on the removal of imaginary nodes to enforce the boundary conditions. Comparison with the original imaginary-node scheme has proved the validity of the proposed method. Performance of MPS method in general is also investigated by comparing the results of Lid-driven and natural convection problems with finite volume method (FVM). It is found that MPS method shows relatively strong numerical diffusion, and for convection problems, MPS method appears to be less robust than FVM. Though better results could be obtained with different kernel functions, such improvement is quite limited.
引用
收藏
页码：226 / 234
页数：9
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