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旋转状态下气膜冷却模型的数值模拟

杨彬 徐国强 丁水汀 陶智

杨彬, 徐国强, 丁水汀, 等 . 旋转状态下气膜冷却模型的数值模拟[J]. 北京航空航天大学学报, 2008, 34(01): 51-54.
引用本文: 杨彬, 徐国强, 丁水汀, 等 . 旋转状态下气膜冷却模型的数值模拟[J]. 北京航空航天大学学报, 2008, 34(01): 51-54.
Yang Bin, Xu Guoqiang, Ding Shuiting, et al. Numerical study for film cooling characteristics on rotating model[J]. Journal of Beijing University of Aeronautics and Astronautics, 2008, 34(01): 51-54. (in Chinese)
Citation: Yang Bin, Xu Guoqiang, Ding Shuiting, et al. Numerical study for film cooling characteristics on rotating model[J]. Journal of Beijing University of Aeronautics and Astronautics, 2008, 34(01): 51-54. (in Chinese)

旋转状态下气膜冷却模型的数值模拟

详细信息
  • 中图分类号: V 231.1

Numerical study for film cooling characteristics on rotating model

  • 摘要: 通过对带有90°倾角圆柱形交错孔排的涡轮叶片模型进行数值模拟,得到了不同主流雷诺数、旋转数和吹风比情况下前缘面与后缘面侧的气膜冷却流动与换热特性及各气膜孔流量系数的分配规律.结果表明,冷气受到离心力与哥氏力的共同作用向高半径处发生偏转,导致壁面冷却效率降低;雷诺数的增大会削弱气膜冷却效果,高吹风比则不利于气膜孔下游区域的冷却.各气膜孔的流量系数随吹风比的增大而增大,随旋转数的提高而减小.在后缘面侧,相同工况下各气膜孔的流量系数明显高于前缘面侧对应气膜孔的值.

     

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出版历程
  • 收稿日期:  2007-01-22
  • 网络出版日期:  2008-01-31

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