• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Forum on Aeroelasticity and Structural Dynamics >DYNAMIC STALL ONSET VARIATION WITH REDUCED FREQUENCY FOR THREE STALL MECHANISMS
【24h】

DYNAMIC STALL ONSET VARIATION WITH REDUCED FREQUENCY FOR THREE STALL MECHANISMS

机译：动态失速突出了三个失速机制频率降低的变化

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A set of unsteady aerodynamic load measurement is performed on three oscillating airfoils with distinct stall mechanisms: a flat plate, a NACA0012, and a NACA0018. The airfoils are forced to oscillate in pitch around the stall angle of attack with prescribed frequency and amplitude. A criterion proposed by Sheng et al. [1-3] is used to locate the onset of the flow separation process associated with dynamic stall, and quantify its variation with an equivalent reduced pitch rate. The validity of this criterion is tested for the three airfoils at low Reynolds number, Re = 2 × 10~4. Results are compared with the experimental data obtained by Sheng et al. at higher Reynolds number of Re = 1.5 × 10~6.
机译：在三个具有不同失速机制的翼型上进行的一组不稳定的空气动力学负载测量：平板，NACA0012和NACA0018。翼型被迫围绕频率和幅度围绕失速攻角振荡振荡。盛等人提出的标准。 [1-3]用于定位与动态失速相关的流分离过程的开始，并通过等效减小的间距率量化其变化。在低雷诺数的三个翼型中测试了该标准的有效性，Re = 2×10〜4。将结果与Sheng等人获得的实验数据进行比较。在较高的雷诺斯重新= 1.5×10〜6的雷诺数。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号