FLUID SIMULATION USING AN ADAPTIVE SEMI-DISCRETE CENTRAL-UPWIND SCHEME

被引：1
|
作者：
Cai, L. [1 ]
Zhou, J. [1 ]
Feng, J. -H. [2 ]
Xie, W. -X. [3 ]
机构：
[1] Northwestern Polytech Univ, Coll Astronaut, Xian 710072, Shaanxi, Peoples R China
[2] Changan Univ, Coll Sci, Xian 710064, Shaanxi, Peoples R China
[3] Northwestern Polytech Univ, Sch Sci, Xian 710072, Shaanxi, Peoples R China
来源：
INTERNATIONAL JOURNAL OF COMPUTATIONAL METHODS | 2007年 / 4卷 / 02期
关键词：
Fluid simulation; hyperbolic conservation laws; central-upwind schemes; local smoothness indicator; triangulation;
D O I：
10.1142/S0219876207001035
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this paper, we propose an adaptive semi-discrete central-upwind scheme on triangular meshes to approximate the solutions of hyperbolic conservation laws in gas dynamics: a local smoothness indicator is implemented to identify discontinuous solution regions; away from the discontinuities, a simple and computationally economical flux is used; near the discontinuities, an accurate but computationally uneconomical flux is used. Several numerical experiments, Euler equations and Kelvin-Helmholtz instability, are successfully simulated. The numerical results show the desired accuracy, high efficiency and robustness of the adaptive scheme.
引用
收藏
页码：283 / 297
页数：15
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