journal6 ›› 2004, Vol. 25 ›› Issue (2): 35-38.

• 博士论坛 • 上一篇    下一篇

离散孔波纹板气膜冷却技术

  

  1. ( 1. 北京航空航天大学能源动力学院, 北京 100083; 2. 南京航空航天大学动力系, 江苏南京 210016;3. 中国航空工业总公司624 所, 四川新都 610500)
  • 出版日期:2004-06-15 发布日期:2012-11-06
  • 作者简介:李锋( 1966- ) , 男, 湖南省资兴人, 北京航空大学能源动力学院热动力工程研究所教授, 博士后, 博士生导师, 主要从事发动机与地面燃烧装置的燃烧及传热技术研究.
  • 基金资助:

    航空基金资助项目( 00C51042)

Discrete Hole Wave Board Film Cooling Technology

  1. ( 1. Institute of Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100083, China; 2. Dept. of Propulsion,Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China; 3. 624 Institute of the General Company of Aeronautics and Astronautics, Xindu 610500, Sichuan China)
  • Online:2004-06-15 Published:2012-11-06

摘要:对2 种不同开口规律的离散孔波纹板进行实验研究, 分析了来流气动参数、波纹板的开孔规律等几何参数对冷却效率的影响. 用热平衡法建立了离散孔波纹板气膜冷却对流换热模型, 用最小二乘法拟合了相应的关系式及关系曲线, 并将有关结果与离散孔平板进行对比, 得出了离散孔波纹板, 尤其是在其波峰跟波谷之间开有大孔的离散孔波纹板, 在其波峰跟波谷之间冷却效率较低, 在孔板的尾端冷却效率的增长比离散孔平板明显加快等一些有实用价值的结论.

关键词: 气膜冷却, 传热, 壁面冷却, 离散孔波纹板

Abstract: Two different wave discrete hole board are experimented, the model of heat transfer of discrete hole wave board film cooling is established, the effects on the film cooling effectiveness of the gas parameters of the flow and the geometric parameters of the discrete hole wave board are analyzed, and the transfer coeff icients are obtained. Some useful conclusion such as the cooling effectiveness of discrete hole wave board is low between the wave peak and the wave volley and the cooling effect iveness increase very quickly behind the wave board are obtained.

Key words: f ilm cooling, heat transfer, wall cooling, discrete hole wave board

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