【摘要】 我们在上一篇文章中讨论了基于边界层动量积分方程求解叶片表面阻力和换热的规律。在此基础上,本文用能量积分方程直接求解叶片表面的换热系数,它能进一步提高计算的精度。此外,苏联中央锅炉汽轮机研究所也提出一种近似方法,本文对方法也作了简要介绍,并结合915发动机第一级静叶进行了计算。最后,对这几种近似方法所得的结果作出了分析和比较。更多还原

【Abstract】 In an earlier paper published in Vol.18,No.4,1984,of this Journal[1]bythe same authors,an approximate method based on the boundary layer integral momen-tum equation for solving the variations of resistance and heat transfer coefficients alonga blade surface was discussed.In the present paper,the surface heat transfer coefficientof gas turbine blades is solved directly by using the integral energy equation,thusfurther raising the accuracy of calculation.Besides,this paper also gives a brief intro-duction to an approximate method proposed by the Central Boiler and Turbine Instituteof Soviet Union,which has been applied in the calculation of the stationaryblades of the first stage on a 915 gas turbine.Finally,the results from the differentmethods are analysed and compared.更多还原