离散孔板气膜冷却对流换热系数的计算

journal6 ›› 2002, Vol. 23 ›› Issue (4): 35-39.

离散孔板气膜冷却对流换热系数的计算

(1.北京航空航天大学动力系，北京100083；2.南京航空航天大学动力系，江苏南京210016；〗3.中国燃气涡轮研究院624所，四川新都610500)

出版日期:2002-12-15 发布日期:2012-11-09
作者简介:李锋(1966-)，男，湖南省资兴人，北京航空航天大学动力系热动力工程研究所副教授，博士后，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:
国家博士后基金资助项目(2302143724)

Calculation of Heat Transfer Coefficients of Discrete Hole Board Film Cooling

(1.Dept. 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 Gas Turbine Academe of China,Xindu 610500,Sichuan China)

Online:2002-12-15 Published:2012-11-09

摘要/Abstract

摘要：通过对几种不同的气膜冷却对流换热系数的计算方法的归纳总结，提出用相对气膜冷却换热系数的方法来计算气膜冷却时的对流换热.在对6种不同开口规律的离散孔平板进行了实验研究的基础上，用热平衡法建立了离散孔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，并分析了来流参数及离散孔板的孔径、开口率等几何参数对气膜冷却对流换热系数的影响.

关键词： 离散孔板, 气膜冷却, 对流换热, 壁面冷却

Abstract: By analyzing the methods of calculating different heat transfer coefficients,the film cooling relative heat transfer coefficients was used to calculate the heat transfer.After six different discrete hole board being experimented,the model of heat transfer of discrete hole board film cooling was established.The effects on the film cooling heat transfer coefficients of the gas parameters of the flow and the geometric parameters of the discrete hole board were analyzed,and the transfer coefficients were obtained.Some useful conclusions such as the effects of the percent of the discrete hole area to the transfer coefficients were obtained.

Key words: discrete hole board, film cooling, heat transfer, wall cooling

李锋, 陈维, 曹会东, 王孝利, 张青藩, 何家德, 王民升. 离散孔板气膜冷却对流换热系数的计算[J]. journal6, 2002, 23(4): 35-39.

LI Feng, CHEN Wei, CAO Hui-Dong, WANG Xiao-Li, ZHANG Qing-Fan, HE Jia-De, WANG Min-Sheng. Calculation of Heat Transfer Coefficients of Discrete Hole Board Film Cooling[J]. journal6, 2002, 23(4): 35-39.