| 超声速开式空腔流动的数值模拟 |
| |
| 引用本文： | 侯中喜,易仕和,王承尧.超声速开式空腔流动的数值模拟[J].推进技术,2001,22(5):400-403. |
| |
| 作者姓名： | 侯中喜 易仕和 王承尧 |
| |
| 作者单位： | 国防科技大学航天与材料工程学院 |
| |
| 基金项目： | "九五”国防预研基金资助项目(13.1.2). |
| |
| 摘 要： | 研究了不同长深比、不同雷诺数条件下,超声速开式空腔流动特性的变化。算法采用空间上5阶的WENO格式,时间上具有TVD性质的3阶Runge-Kutta方法,湍流模型选用B－L模型。数值模拟获得了不同的时刻的注场图像,压力波、涡以及空腔结构之间的相互耦合作用,使得空腔内存在典型的周期性压力脉动,但不同长深比空腔的流动性存在较大差别。
|
| 关 键 词： | WENO格式 非定常流 空腔流 数值仿真 超声速开式空腔 超声速飞行器 |
| 文章编号： | 1001-4055(2001)05-0400-04 |
| 修稿时间： | 2001年1月9日 |
Numerical analysis of supersonic open cavity |
| |
| Hou Zhongxi,Yi Shi He and Wang ChenYao.Numerical analysis of supersonic open cavity[J].Journal of Propulsion Technology,2001,22(5):400-403. |
| |
| Authors: | Hou Zhongxi Yi Shi He and Wang ChenYao |
| |
| Institution: | Inst. of Aerospace and Material Technology, National Univ. of Defence Technology, Changsha 410073,China;Inst. of Aerospace and Material Technology, National Univ. of Defence Technology, Changsha 410073,China;Inst. of Aerospace and Material Technology, National Univ. of Defence Technology, Changsha 410073,China |
| |
| Abstract: | The varieties of flow characteristics in supersonic open cavity were analyzed with different Length/Depth or Reynolds number. Five order WENO scheme and three order Runge Kutta algorithm with the TVD characteristics were used. The turbulent B L model was adopted. Through numerical analyzed, the clear images of open cavity at different time were got .The nature of periodic oscillation in open cavity is the interactions of the pressure wave, vortex and cavity structure, but different cavity have different characteristics. |
| |
| Keywords: | Supersonic flow WENO scheme Unsteady flow Cavity flow Numerical simulation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《推进技术》浏览原始摘要信息 |
| 点击此处可从《推进技术》下载免费的PDF全文 |
|
