• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>AIAA aerospace sciences meeting;AIAA SciTech forum >Fast-PSP Based Investigation of Dynamic Shockwave Formation
【24h】

Fast-PSP Based Investigation of Dynamic Shockwave Formation

机译：基于快速PSP的动态冲击波形成研究

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

摘要

A detailed experimental investigation of the formation of Shockwaves on a NACA0012 airfoil under accelerated flow was carried out. The experiment Reynolds number was relatively low (R_e ~ 1.10~6) and no transition triggering devices were used, favoring stronger shockwave-boundary layer interactions. Two types of fast-response pressure sensitive paint were used, in order to compare their performances. Static calibration of test samples was performed and used to correlate intensity ratio to pressure values. Compared to fully turbulent flow, the Shockwave onset was remarkably different. Two distinct steps were identified: a fixed location Shockwave onset, in which the main Shockwave develops in a position that mismatches the turbulent case, and fully developed Shockwave propagation. The results confirm that the formation pattern observed in previous experiments by step increasing flow Mach number is also valid in a dynamic accelerating flow.
机译：进行了在加速流动下，NACA0012机翼上冲击波形成的详细实验研究。实验雷诺数相对较低（R_e〜1.10〜6），没有使用跃迁触发装置，有利于更强的冲击波边界层相互作用。为了比较它们的性能，使用了两种类型的快速响应压敏涂料。进行测试样品的静态校准，并将其与强度比与压力值相关联。与完全湍流相比，冲击波的起效明显不同。确定了两个不同的步骤：固定位置的冲击波发作，其中主冲击波在与湍流情况不匹配的位置发展，并且完全发展了冲击波传播。结果证实，在先前实验中通过逐步增加流量马赫数观察到的形成模式在动态加速流量中也是有效的。

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