| 由气水流场耦合求解圆板的垂直等速入水 |
| |
| 引用本文： | 佘建伟,彭乐生.由气水流场耦合求解圆板的垂直等速入水[J].水动力学研究与进展(A辑),1990,5(1):38-45. |
| |
| 作者姓名： | 佘建伟 彭乐生 |
| |
| 作者单位： | 上海交通大学工程力学系
(佘建伟)，上海交通大学工程力学系(彭乐生) |
| |
| 摘 要： | 为探讨气流对入水空泡的影响以及计算非定常空泡面上的压力分布，本文提出了一个用自由面和物面上的边值同时求解气、水流场的方法，对圆板垂直等速入水算例，获得了空泡深闭合的结果。空泡内压力在深闭合时的骤增趋势与实验一致。表明本方法用于计算存在自由面的二层不掺混不可压势流问题是有效的。
|
| 关 键 词： | 入水 非定常空泡 非线性自由面 空泡压力 E－L方法 深闭合 气水流场耦合 圆板 |
Calculation of the Vertical Constant-Speed Water Entry of a Disk with Coupled the Water Field and the Air Field |
| |
| She Jian-wei Peng Le-sheng.Calculation of the Vertical Constant-Speed Water Entry of a Disk with Coupled the Water Field and the Air Field[J].Journal of Hydrodynamics,1990,5(1):38-45. |
| |
| Authors: | She Jian-wei Peng Le-sheng |
| |
| Affiliation: | Shanghai Jiao Tong University |
| |
| Abstract: | In order to explore the influence of air flow on the water entry caviy and to find out the pressure distribution on the unsteady cavity surface, a method of simultaneously calculating the boundary values of the air field and the water field on the entry body and free surfaces is presented. Taking the vertical constand-speed water entry of a disk as the numerical example, we got the deep closure results. The sharply increased pressure inside the cavity near deep closure is consistent with the experimental phenomena. So with our method, it is effective to solve the problems containing two kinds of incompressible potential flows of a free interface. |
| |
| Keywords: | water entry unsteady cavity nonlinear free surface cavity pressure E-L method deep closure |
| 本文献已被 CNKI 维普 等数据库收录！ |
