微燃气轮机环型回热器数值模拟及实验研究  

Numerical and experimental study on flow and heat transfer performance of annular primary surface recuperator in microturbine

作　　者：刘彩赢[1] 徐之平[1] 张磊[1] 张伟荣[1] 王崇俊[2] 

机构地区：[1]上海理工大学能源与动力工程学院,上海200093 [2]中国航天科工集团第三十一研究所,北京100074

出　　处：《上海理工大学学报》2010年第2期191-195,共5页Journal of University of Shanghai For Science and Technology

基　　金：上海市科学技术委员会资助项目(081958029)

摘　　要：基于层流的假设运用计算流体动力学方法对微型燃气轮机环型回热器交错波纹原表面通道两侧流体耦合换热与流动特性进行数值模拟及实验研究.结果表明,数值计算结果和实验结果之间的误差在允许的范围内.在此基础上,通过改变通道结构进一步研究其传热及流动特性,为回热器设计提供参考.A model of cross wavy（CW） ducts was established by using computational fluid dynamic method,and the flow and heat transfer characteristics of annular primary surface recuperator in microturbine were simulated numerically under the laminar flow condition and investigated experimentally.The results show good consistency between numerical simulation and experimental data.Furthermore,the effect of geometrical parameters of CW surface on heat transfer performance was discussed,and then the flow and heat transfer characteristics were compared for different structural parameters of CW.The study provides a basis for design optimization of recuperators.

关 键 词：环形回热器 层流 交错波纹原表面 

分 类 号：TK124[动力工程及工程热物理—工程热物理]