平直开缝翅片传热特性的三维数值模拟及场协同原理分析  

3D NUMERICAL SIMULATION ON HEAT TRANSFER PERFORMANCE OF SLIT FIN SURFACESE AND ANALYSIS WITH FIELD SYNERGY PRINCIPLE

作　　者：屈治国[1] 何雅玲[1] 陶文铨[1] 

机构地区：[1]西安交通大学动力工程多相流国家实验室,陕西西安710049

出　　处：《工程热物理学报》2003年第5期825-827,共3页Journal of Engineering Thermophysics

基　　金：国家973重点基础研究发展规划资助项目(No.G2000026303);]自然科学基金(No.50076034)

摘　　要：本文用数值模拟的方法对翅片管换热器中广泛使用的平直开缝翅片的传热特性进行了数值模拟。结果表明在平翅片后部开缝与在翅片前部开缝相比,换热增强更多,并用场协同理论分析说明,在速度场和温度场协同比较差的区域开缝要比在场协同比较好的区域开缝对传热强化更有效。In this paper, numerical investigation of air side performance of slit fin heat exchanger is presented. It is revealed that the strips located in the rear part of a typical slit fin configuration have better heat transfer performance than those in the front. The results are also analyzed with the field synergy principle. It turns out that it is more efficient to set the strips in the part where the velocity and the temperature field .are in poor synergy to enhance heat transfer.

关 键 词：开缝翅片 数值模拟 场协同 

分 类 号：TK124[动力工程及工程热物理—工程热物理]