| 大攻角流动的非定常特性分析 |
| |
| 引用本文： | 王元靖,范召林,吕全洲,贺中,吴军强.大攻角流动的非定常特性分析[J].空气动力学学报,2007,25(2):145-149,156. |
| |
| 作者姓名： | 王元靖 范召林 吕全洲 贺中 吴军强 |
| |
| 作者单位： | 中国空气动力研究与发展中心,四川,绵阳,621000 |
| |
| 摘 要： | 本文首先通过动态测量手段研究了大攻角流场中的能量成分,分析了各种成分引发的非定常性对大攻角流动的影响。结果表明大攻角流动本身是一种“涡行为”,非定常性对大攻角流动非对称性的影响较弱,影响大攻角流动的本质因素是涡的动力不稳定性对于前体不确定小扰动的响应。
|
| 关 键 词： | 大攻角 流动非对称性 非定常性 |
| 文章编号： | 0258-1825（2007）02-0145-05 |
| 修稿时间： | 2005-11-132006-02-02 |
Analysis of the unsteady character of the flow field at high incidence |
| |
| WANG Yuan-jing,FAN Zhao-lin,L Quan-zhou,HE Zhong,WU Jun-qiang.Analysis of the unsteady character of the flow field at high incidence[J].Acta Aerodynamica Sinica,2007,25(2):145-149,156. |
| |
| Authors: | WANG Yuan-jing FAN Zhao-lin L Quan-zhou HE Zhong WU Jun-qiang |
| |
| Institution: | China Aerodynamics Research and Development Center, Mianyang Sichuan 621000, China |
| |
| Abstract: | A study was performed for the energy components in the flow field at high incidence by dynamic measurement.And the effect of the unsteadiness induced by these components on the flow was analyzed at high incidence.The results showed that the flow itself at high incidence was a kind of "vortex behavior" and the effect of the flow unsteadiness on the flow asymmetry at high incidence was feeble.The key factor which can affect the flow at high incidence essentially was the response of the dynamic unsteadiness of the vortexes to the unpredictable micro-disturbance coming from near the nose of the model. |
| |
| Keywords: | high incidence flow asymmetry unsteadiness |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
