| 采用Poisson方程生成曲线网格时源项P、Q选择的研究 |
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| 引用本文： | 魏文礼,张宗孝,刘玉玲,刘明琴.采用Poisson方程生成曲线网格时源项P、Q选择的研究[J].应用力学学报,2000,17(3). |
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| 作者姓名： | 魏文礼 张宗孝 刘玉玲 刘明琴 |
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| 作者单位： | 1. 西安理工大学,西安,710048
2. 武警工程兵学院,西安,71000 |
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| 摘 要： | 采用 Poisson方程进行曲线网格生成时 ,如何确定合适的调节因子 P、Q函数是网格生成技术中的一个重要的研究内容。本文提出一种新的构造 P、Q函数的方法 ,该方法直接利用边界网格节点的分布信息来控制区域内部网格节点的分布 ,生成的正交曲线网格令人满意。该方法可应用于河道、湖泊等一类复杂边界的二维流速场的数值模拟中。
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| 关 键 词： | Poisson方程 正交曲线网格 调节因子P、Q函数 |
Research on the Source Terms P and Q of Poisson Equations for Grid Generation |
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| Wei Wenli,Zhang Zongxiao,Liu Yuling,WTBZ.Research on the Source Terms P and Q of Poisson Equations for Grid Generation[J].Chinese Journal of Applied Mechanics,2000,17(3). |
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| Authors: | Wei Wenli Zhang Zongxiao Liu Yuling [WTBZ] |
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| Institution: | Wei Wenli Zhang Zongxiao Liu Yuling [WT6BZ] |
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| Abstract: | This paper is concerned with a new method to determine the source terms P and Q of Poisson equations for grid generation. By using the source terms presented in this paper, a satisfactory grid can be obtained. The interior grid distribution is controlled by prior selection of the grid point distribution along the boundaries of the region, and the orthogonality is satisfied. This grid generation technique will be widely used in the numerical solution of 2 D flow in rivers, lakes, and the shallow water regions. |
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| Keywords: | Poisson equations orthogonal curvilinear grid weighting functions (P and Q) |
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