| 在二维流动计算中应用“河床切削”技术处理动边界问题 |
| |
| 引用本文： | 彭凯,方锋,曹叔尤. 在二维流动计算中应用“河床切削”技术处理动边界问题[J]. 水动力学研究与进展(A辑), 1992, 0(2) |
| |
| 作者姓名： | 彭凯 方锋 曹叔尤 |
| |
| 作者单位： | 成都科技大学高速水力学国家重点实验室，成都科技大学高速水力学国家重点实验室，成都科技大学高速水力学国家重点实验室 成都 610065，成都 610065，成都 610065 |
| |
| 摘 要： | 本文提出应用“河床切削”技术处理二维流动中的动边界问题,该技术简单易行,物理概念明确,节省计算时间。为克服差分法的弱点,运用文献[1]的研究成果,生成正交数值网格。导出了本文正交曲线坐标系下的ADI法差分公式。本文方法边界适应能力强,计算时间短,内存少.程序简单。本方法已用于计算长江重庆某河段模型流场,其结果令人满意。
|
| 关 键 词： | “河床切削”技术 动边界 河道流场 |
An Application of Bed-Cutting Technique to Moving Boundary in 2-D Flow Computation |
| |
| Peng Kai Fang Duo Cao Shu-you. An Application of Bed-Cutting Technique to Moving Boundary in 2-D Flow Computation[J]. Chinese Journal of Hydrodynamics, 1992, 0(2) |
| |
| Authors: | Peng Kai Fang Duo Cao Shu-you |
| |
| Abstract: | It is presented in this paper that the bed-cutting technique is applied to the problem of moving boundary in 2-D flow computation .This technique is simple and can be easily used. Its principle is clear and definite and it requires little computational time. In order to overcome the weakness of FD method, the results of reference [1] are applied to generate orthogonal grids. The difference equations for ADI method with the orthogonal curvilinear coordinate are developed, which are applicable to a complex boundary .The method has been used to simulate numerically the flow field in a section of Yangze River near the Chongqing city, and the results are satisfactory. |
| |
| Keywords: | bed-cutting technique moving boundary problem channel flow. |
| 本文献已被 CNKI 等数据库收录！ |
