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旋转状态边界层速度场及温度场特性实验

李刚夫 李海旺 由儒全

李刚夫, 李海旺, 由儒全. 旋转状态边界层速度场及温度场特性实验[J]. 航空动力学报, 2020, 35(12): 2573-2582. doi: 10.13224/j.cnki.jasp.2020.12.011
引用本文: 李刚夫, 李海旺, 由儒全. 旋转状态边界层速度场及温度场特性实验[J]. 航空动力学报, 2020, 35(12): 2573-2582. doi: 10.13224/j.cnki.jasp.2020.12.011
LI Gangfu, LI Haiwang, YOU Ruquan. Experiment on characteristics of velocity and temperature fields of rotating boundary layer[J]. Journal of Aerospace Power, 2020, 35(12): 2573-2582. doi: 10.13224/j.cnki.jasp.2020.12.011
Citation: LI Gangfu, LI Haiwang, YOU Ruquan. Experiment on characteristics of velocity and temperature fields of rotating boundary layer[J]. Journal of Aerospace Power, 2020, 35(12): 2573-2582. doi: 10.13224/j.cnki.jasp.2020.12.011

旋转状态边界层速度场及温度场特性实验

doi: 10.13224/j.cnki.jasp.2020.12.011
基金项目: 国家自然科学基金(51906008,51822602); 国家科技重大专项(2017-Ⅲ-0003-0027)

Experiment on characteristics of velocity and temperature fields of rotating boundary layer

  • 摘要: 针对涡轮转子叶片内冷技术,使用TR-PIV(time resolved particle image velocimetry)技术与热线技术同步原位测量了壁面加热条件下旋转通道内边界层速度场和温度场特性。结果显示:旋转数大于0.48时前缘面附近出现了回流现象,并从受力分析的角度给出了解释;回流区一般出现于流场下游、较大密度比、较高旋转数下,可以利用回流区的影响达到增强前缘面换热的目的;得到了旋转条件下无量纲温度型、温度脉动量和努塞尔数的变化规律,可以看出湍流边界层内部的温度场分布在旋转效应的影响下产生了强烈的不对称性,与静止条件下的标准规律相比会产生一定的偏差。

     

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出版历程
  • 收稿日期:  2020-05-28
  • 刊出日期:  2020-12-28

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