MLPG method for convection-dominated flow problems

被引：1
|
作者：
Wu, Xue-Hong [1 ]
Chang, Zhi-Juan [3 ]
Tao, Wen-Quan [2 ]
Li, Zeng-Yao [2 ]
Shen, Sheng-Ping [2 ]
机构：
[1] Zhengzhou Univ Light Ind, Sch Electromech Sci & Engn, Zhengzhou 450002, Henan, Peoples R China
[2] Xi An Jiao Tong Univ, Sch Energy & Power Engn, Xian 710049, Shaanxi, Peoples R China
[3] Zhengzhou Univ Light Ind, Sch Food & Biol Engn, Zhengzhou 450002, Henan, Peoples R China
来源：
PROGRESS IN COMPUTATIONAL FLUID DYNAMICS | 2012年 / 12卷 / 01期
基金：
中国国家自然科学基金;
关键词：
MLPG; meshless local Petrov-Galerkin; MLS; Moving Least Square; Smith-Hutton problem; overshoot; convection-dominated; PETROV-GALERKIN MLPG; HEAT-CONDUCTION PROBLEMS; LAMINAR NATURAL-CONVECTION; MESHLESS METHOD; FLUID-FLOW; NUMERICAL-SOLUTION; COMPUTATIONAL MECHANICS; DIFFUSE APPROXIMATION; PARTICLE METHOD; STEADY-STATE;
D O I：
10.1504/PCFD.2012.044852
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
In this paper, the Meshless Local Petrov-Galerkin (MLPG) method is applied to compute convection-dominated flow problems. The results of the MLPG method are compared with the results of the finite volume method. The results show that the first-order upwind (FUD) scheme exhibits the false diffusion at a larger-Peclet number; the QUICK scheme and the MLPG method can obtain much closed solutions; but they have small overshoots produced at larger-Peclet number. The results also indicate that the MLPG method is a highly effective and accurate numerical method to deal with convection-dominated flow problems and can eliminate the effect of the false diffusion.
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页码：27 / 36
页数：10
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