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吹风比和曲率对旋转曲面气膜冷却效率影响

吴 宏 孟恒辉 赵振明 吴宏伟

吴 宏, 孟恒辉, 赵振明, 等 . 吹风比和曲率对旋转曲面气膜冷却效率影响[J]. 北京航空航天大学学报, 2009, 35(7): 812-816.
引用本文: 吴 宏, 孟恒辉, 赵振明, 等 . 吹风比和曲率对旋转曲面气膜冷却效率影响[J]. 北京航空航天大学学报, 2009, 35(7): 812-816.
Wu Hong, Meng Henghui, Zhao Zhenming, et al. Numerical investigation of film cooling effectiveness over rotating curved surfaces:blowing ratio and curvature effect[J]. Journal of Beijing University of Aeronautics and Astronautics, 2009, 35(7): 812-816. (in Chinese)
Citation: Wu Hong, Meng Henghui, Zhao Zhenming, et al. Numerical investigation of film cooling effectiveness over rotating curved surfaces:blowing ratio and curvature effect[J]. Journal of Beijing University of Aeronautics and Astronautics, 2009, 35(7): 812-816. (in Chinese)

吹风比和曲率对旋转曲面气膜冷却效率影响

基金项目: 国家自然科学基金资助项目(59675022)
详细信息
    作者简介:

    吴 宏(1971-),男,福建浦城人,副教授,wuhong@buaa.edu.cn.

  • 中图分类号: V 231.1

Numerical investigation of film cooling effectiveness over rotating curved surfaces:blowing ratio and curvature effect

  • 摘要: 采用数值模拟方法,对旋转状态下曲率表面的气膜冷却进行研究.通过不同的曲率半径和吹风比,得到了冷却效率的分布情况,从而获得吹风比和曲率两因素对气膜冷却效率的影响规律.研究结果表明:低吹风比下,冷却效率较好;高吹风比下,气膜容易脱离壁面;凸表面的冷却效率随着曲率半径的增加而逐渐减小;而凹表面的冷却效率随着曲率半径的增加而逐渐增大;凸表面上曲率的影响作用随着旋转数的增加而逐渐弱化;而凹表面上曲率的作用随着旋转数的增大而逐渐增强.

     

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出版历程
  • 收稿日期:  2008-06-13
  • 网络出版日期:  2009-07-31

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