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马蹄形等离子体激励器强化气膜冷却效率机理

代胜吉 何立明 丁未 金涛 杜宏亮

代胜吉, 何立明, 丁未, 金涛, 杜宏亮. 马蹄形等离子体激励器强化气膜冷却效率机理[J]. 航空动力学报, 2013, 28(9): 1982-1987.
引用本文: 代胜吉, 何立明, 丁未, 金涛, 杜宏亮. 马蹄形等离子体激励器强化气膜冷却效率机理[J]. 航空动力学报, 2013, 28(9): 1982-1987.
DAI Sheng-ji, HE Li-ming, DING Wei, JIN Tao, DU Hong-liang. Mechanism of film cooling efficiency enhancement by horseshoe plasma actuator[J]. Journal of Aerospace Power, 2013, 28(9): 1982-1987.
Citation: DAI Sheng-ji, HE Li-ming, DING Wei, JIN Tao, DU Hong-liang. Mechanism of film cooling efficiency enhancement by horseshoe plasma actuator[J]. Journal of Aerospace Power, 2013, 28(9): 1982-1987.

马蹄形等离子体激励器强化气膜冷却效率机理

基金项目: 国家自然科学基金(51276196)

Mechanism of film cooling efficiency enhancement by horseshoe plasma actuator

  • 摘要: 为揭示马蹄形等离子体激励器产生的等离子体气动激励提高气膜冷却效率的机理,选取常规圆形气膜孔冷却结构进行了数值模拟比较.结果表明:马蹄形等离子体激励器产生的等离子体气动激励效果可以使射流具有展向扩张能力,肾形涡对的大小及强度得到显著改变,同时受等离子体气动激励产生的下拉诱导和水平加速效果影响,射流贴壁性及覆盖区域大大提高,冷却效率得到强化;相对于圆形气膜孔冷却效果,马蹄形介质阻挡放电气膜冷却结构在吹风比为0.5,1.0和1.5时,冷却效率值相差最大处分别提高了165%,148%和500%.

     

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出版历程
  • 收稿日期:  2013-03-18
  • 刊出日期:  2013-09-28

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