| 二维对流—扩散方程的控制体有限元法数值模拟 |
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| 引用本文： | 王旭,严传俊.二维对流—扩散方程的控制体有限元法数值模拟[J].航空动力学报,1996,11(4):389-392,438. |
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| 作者姓名： | 王旭 严传俊 |
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| 作者单位： | 西北工业大学 |
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| 摘 要： | 推导了二维对流—扩散方程的控制体有限元公式，其主要特点是所得离散化方程适合于逐点迭代法及共轭梯度法进行求解，使得该方法更适合于求解复杂的几何域及节省更多的计算机内存。通过几个算例表明，该方法对于特别大的Ｐｅｃｌｅｔ数其精度也是很高的
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| 关 键 词： | 对流 扩散 有限元法 |
| 收稿时间： | 1995/10/1 0:00:00 |
| 修稿时间： | 1/1/1996 12:00:00 AM |
A CVFEM FOR 2-D CONVECTION-DIFFUSION EQUATION |
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| Wang Xu and Yan Chuanjun.A CVFEM FOR 2-D CONVECTION-DIFFUSION EQUATION[J].Journal of Aerospace Power,1996,11(4):389-392,438. |
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| Authors: | Wang Xu and Yan Chuanjun |
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| Institution: | 7th Dept.Northwestern Polytechnical University,Xi'an 710072;7th Dept.Northwestern Polytechnical University,Xi'an 710072 |
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| Abstract: | The formulation of a control-volume-based on finite-element method (CVFEM) for two-dimensional convection-diffusion equaitons is presented.It has a main advantage in capability of the obtained discretization equation to be solved with point-by-point and conjugate gradient iteration method,so that it is more suitable to complex geometrical fields and can save much more computer memory.Some numerical examples proved that the accuracy to any high Peclet number is quite encouraging. |
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| Keywords: | Convection Diffusion Finite element methods |
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