| 扰流片快速张开诱发的非定常流动研究 |
| |
| 引用本文： | 周涛,阎超.扰流片快速张开诱发的非定常流动研究[J].航空学报,2006,27(6):1009-1013. |
| |
| 作者姓名： | 周涛 阎超 |
| |
| 作者单位： | 北京航空航天大学,国家计算流体力学实验室,北京,100083 |
| |
| 摘 要： | 通过数值求解二维非定常可压N-S方程,研究了二维翼型上扰流片快速张开诱发的复杂非定常流动问题。利用动态重叠网格方法处理扰流片和主翼相对移动,分析了扰流片快速张开诱发的升力过冲现象及其形成机理。着重探讨了来流迎角、扰流片高度以及快速张开速率对过冲量的影响。
|
| 关 键 词： | 计算流体力学 非定常 扰流片 重叠网格 |
| 文章编号： | 1000-6893(2006)06-1009-05 |
| 修稿时间： | 2005年1月21日 |
Unsteady Flow Around Airfoil with a Rapidly Deploying Spoiler |
| |
| ZHOU Tao,YAN Chao.Unsteady Flow Around Airfoil with a Rapidly Deploying Spoiler[J].Acta Aeronautica et Astronautica Sinica,2006,27(6):1009-1013. |
| |
| Authors: | ZHOU Tao YAN Chao |
| |
| Institution: | National Laboratory for CFD, Beijing University of Aeronautics and Astronautics, Beijing 100083, China |
| |
| Abstract: | Transient aerodynamic response of an airfoil to a rapidly deploying spoiler is numerically investigated by solving two-dimensional unsteady compressible Navier-Stokes equations.The spoiler moving relative to a stationary airfoil is treated by a dynamic overset grid method.The mechanism of the adverse lift caused by the rapidly deploying spoiler is analyzed.Also,the effects of angle of attack,height of spoiler and rapidly deplo- ying rate on the adverse lift are investigated. |
| |
| Keywords: | CFD unsteady spoiler overset grid |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《航空学报》浏览原始摘要信息 |
| 点击此处可从《航空学报》下载免费的PDF全文 |
