X型开缝翅片传热与流动性能的数值模拟  

Numerical simulation of heat transfer and fluid flow characteristics of X-shaped slit of fin

作　　者：钱力 吴学红[2] 吕彦力[2] 

机构地区：[1]河南省电力勘测设计院,河南郑州450002 [2]郑州轻工业学院机电工程学院,河南郑州450002

出　　处：《郑州轻工业学院学报（自然科学版）》2011年第4期45-49,共5页Journal of Zhengzhou University of Light Industry:Natural Science

基　　金：国家自然科学基金项目(21076200);河南省省院合作项目(092106000013);郑州市科技创新团队项目(10CXTD151);郑州轻工业学院博士基金项目(2009BSJJ001)

摘　　要：对X型开缝翅片的流动与传热性能进行数值模拟,并把计算结果与平片和开缝翅片的计算结果进行比较.结果表明:从3种开缝翅片的JF因子看,X型开缝翅片的最大,说明其性能最优.2种X型开缝翅片管的尾迹区较小,因此该种结构能有效减小尾迹区对换热的影响.Heat transfer and fluid flow characteristics of X-shaped slit fin were investigated by numerical simulation.At the same time,its computational results are compared with that of plain and slit fin.The results showed that JF factor of X-shaped offset fin is maximum and its performance is the best.The X-shaped slit of fin has a low wake region behind the tubes,so its performance of heat transfer and flow is improved in the wake region.

关 键 词：X型开缝翅片 传热 流动 JF因子 数值模拟 

分 类 号：TK124[动力工程及工程热物理—工程热物理]