| 通过肘形区域的理想非压缩流体数值模拟 |
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| 引用本文： | P．Mounnumprang.通过肘形区域的理想非压缩流体数值模拟[J].贵州科学,2006,24(3):1-4. |
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| 作者姓名： | P．Mounnumprang |
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| 作者单位： | Valaya Alongkorn Rajabhat大学理学院,泰国,帕素萨尼省,13180 |
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| 基金项目： | The authors would like to thank Thai Research Fund for supporting this work. Also, I would like to thank Assoc. Prof. Dr. Nikolay Moshkin for giving the idea of this work. |
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| 摘 要： | 本文给出二维的理想非压缩流体欧拉方程边值问题的一种新的数值计算方法.文中主要考虑具备流入和流出的流体通过一个有界肘型区域的情形.通过坐标变换,将原欧拉方程变换为一种新的适合于肘型区域的求解形式,再用有限差分法,得到问题的近似求解格式.最后文中将此方法应用到不同肘型形状的区域上,进行数值模拟,说明了算法有效性.
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| 关 键 词： | 理想不可压缩流体 Euler方程 有限差分法 ideal incompressible fluid Euler equation flowing through problem |
| 文章编号： | 1003-6563（2006）03-0001-04 |
| 收稿时间： | 2005-10-10 |
| 修稿时间： | 2005年10月10 |
ON NUMERICAL SIMULATION OF INTERNAL ROTATIONAL INVISCID FLOW |
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| Peiangpob Mounnumprang.ON NUMERICAL SIMULATION OF INTERNAL ROTATIONAL INVISCID FLOW[J].Guizhou Science,2006,24(3):1-4. |
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| Authors: | Peiangpob Mounnumprang |
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| Institution: | Science Center,Valaya Alongkom Rajabhat University, Pathumthani, 13180, Thailand |
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| Abstract: | A numerical algorithm to study the boundary value problem in which the governing equations are the steady Euler equations and the vorticity is given on the inflow parts of the domain boundary is developed. The ELder equations are implemented in terms of the stream function and vorticity. The convergence of the finite - difference equations to the exact solution is shown experimentally for the test problem by comparing the computational results with the exact solution on the sequence of grids. The numerical algorithm is illustrated with several examples of steady flow through a 2-D channel with two inflow and outflow parts of boundary. The analysis of calculations shows strong dependence of the flow structure on the vorticity given at the inflow parts of the boundary. |
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| Keywords: | ideal incompressible fluid ELder equation flowing through problem |
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