| 二维正交数值网格生成的解析——数值势流理论方法 |
| |
| 引用本文： | 彭凯,方铎,温贤云. 二维正交数值网格生成的解析——数值势流理论方法[J]. 四川大学学报(工程科学版), 1989, 0(5) |
| |
| 作者姓名： | 彭凯 方铎 温贤云 |
| |
| 作者单位： | 成都科技大学水利科学研究所，成都科技大学水利科学研究所，成都科技大学水利科学研究所 |
| |
| 摘 要： | 本文运用新近势流理论研究成果,生成二维正交数值网格。在该网格构成的二维正交曲线坐标系下,可直接求解控制方程,其中拉梅系数为已知值——势流流速的倒数1/U。本文方法收敛性好,收敛速度快,运算量小。文中以连续弯道和长江某河段为例,生成数值网格,其结果令人满意.
|
| 关 键 词： | 数值网格 势流理论 正交曲线坐标系 |
The Technique of Analytic-numerical Potential Flow Theory of Two Dimensional Orthogonal Numerical Grid Generation |
| |
| Peng Kai Fang Duo Wen Xianyun. The Technique of Analytic-numerical Potential Flow Theory of Two Dimensional Orthogonal Numerical Grid Generation[J]. Journal of Sichuan University (Engineering Science Edition), 1989, 0(5) |
| |
| Authors: | Peng Kai Fang Duo Wen Xianyun |
| |
| Affiliation: | Peng Kai Fang Duo Wen Xianyun |
| |
| Abstract: | The recent achievments in potential theory have been applied to obtaining potential flow curves and equal potential curves in which density can be adjusted for complex solid boundaries. Those flow carves and equal potential curves are the two dimensional orthogonal numerical grid curves generated in this paper. In the special orthogonal curvilinear coordinate system that consists of the flow curves and equal potential curves, the scale factors of control equations in coordinate transformation have been determined-the reciprocal of potential flow velocity(l/U), control equations can be directly numerically solved. The technique has been successfully applied to generating the orthogonal numerical grid of consequent bend and section of the Yangtze river, and the results of calculations are very satisfactory. |
| |
| Keywords: | numerical grid potential flow theory orthogonal curvilinear coordinate system |
| 本文献已被 CNKI 等数据库收录！ |
