| 二维圆柱绕流有限元与边界元解法 |
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| 引用本文： | 刘希云. 二维圆柱绕流有限元与边界元解法[J]. 南京理工大学学报(自然科学版), 1995, 19(2): 164-167 |
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| 作者姓名： | 刘希云 |
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| 作者单位： | 南京理工大学动力工程学院 |
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| 基金项目： | 国家自然科学基金，国防科技预研行业基金 |
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| 摘 要： | 该文简述有限元法与边界元法概况，由二维圆椎绕流解的算例表明：边界元法比有限元法计算速度快，精度高。对于Ｓｔｏｋｅｓ流动，文中通过高阶拉普拉斯算子基本解变换，将区域积分变成完全边办积分，减少计算时，充分发挥边界元法的优越性。计算结果非常接近分析解。
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| 关 键 词： | 有限元 边界元 圆柱浇流 斯托克斯方程 |
Solution to the Flow over a Cylinder by the Finite Element and the Boundary Element Methods |
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| Liu Xiyun. Solution to the Flow over a Cylinder by the Finite Element and the Boundary Element Methods[J]. Journal of Nanjing University of Science and Technology(Nature Science), 1995, 19(2): 164-167 |
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| Authors: | Liu Xiyun |
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| Abstract: | In this paper,the finite element and boundary element methods are brieflystated.The solution to the flow over a cvlinder shows that the rate and exactness of theboundary element method are higher than those of the finite element method.The domaimintegral is translated into the complete boundary integral by the fundamental solution ofhigher order Laplace operator,for Stokes flow.The computation is decreased,the characterof the boundary element is fully developed.The results of the computation are in good a-greement with those of the analytical solution. |
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| Keywords: | finite element methods boundary element methods Stokes equation |
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