U型管式回热器设计与流动换热性能试验研究  

Design and experiment study of the flow and heat transfer performance of U-shaped recuperator

作　　者：童传琛 方弘毅 康涌 吴正洪 赵旺东 娄德仓 周雷 TONG Chuan-chen;FANG Hong-yi;KANG Yong;WU Zheng-hong;ZHAO Wang-dong;LOU De-cang;ZHOU Lei(AECC Sichuan Gas Turbine Establishment,Chengdu 610500,China)

机构地区：[1]中国航发四川燃气涡轮研究院,成都610500

出　　处：《燃气涡轮试验与研究》2017年第2期17-21,31,共6页Gas Turbine Experiment and Research

摘　　要：在参考国内外文献资料基础上,利用FORTRAN语言编写回热器流动换热计算程序,完成回热器流阻和换热特性计算。根据计算结果,设计、加工了U型管式回热器试验件。试验研究了燃气冷气流量比、温比、回热器与燃气流向夹角以及回热器套管等参数对回热器流阻换热特性的影响,并将试验结果与计算结果进行对比分析,验证校核了回热器数值计算方法的有效性。研究表明,温比对回热器的换热效率影响较小,流量比和回热器与燃气流向夹角对流阻和换热效率影响很大。Based on the relative references from home and abroad,the flow and heat transfer computation program of a recuperator for aero-engine applications was compiled by FORTRAN to calculate the flow resistance and heat transfer characteristics.According to the results,the U-shaped recuperator model for experiment was designed and constructed.The impact of gas/air mass flow ratio,inlet temperature ratio of gas and air,attack angle of gas,and guide vane on the performance of the recuperator was studied through experiments.Experimental results were compared with the numerical results and the methodology of calculation was verified.The results show that temperature ratio has less influence on the heat transfer efficiency of the recuperator than that of mass flow ratio and attack angle.

关 键 词：航空发动机 间冷回热循环 回热器 流阻换热特性试验 流量比 温比 导流结构 

分 类 号：V236[航空宇航科学与技术—航空宇航推进理论与工程]