三头螺旋波纹管强化传热数值模拟  

A Numerical Study on Heat Transfer of Three-Start Spirally Corrugated Tubes

作　　者：刘佳驹[1] 刘伟[1] 

机构地区：[1]华中科技大学能源与动力工程学院,湖北武汉430074

出　　处：《工程热物理学报》2013年第11期2128-2131,共4页Journal of Engineering Thermophysics

基　　金：国家重点基础研究发展计划项目(No.2013CB228302);国家自然科学基金项目(No.51036003);教育部博士点基金项目(No.20100142110037)

摘　　要：本文采用数值计算的方法，以水为工质，研究了一种三头螺旋波纹管在层流状态下换热与流动的综合性能，并将不同槽深的螺旋波纹管进行对比。此外，利用物理量的场协同原理对计算结果进行了分析。结果表明，三头螺旋波纹管能有效提升管内综合强化传热性能，其PEC值达到1．31-2．41，并且槽深越深，PEC值越高。In the present paper, a three-dimensional laminar analysis on heat transfer and fluid flow of three-start spirally corrugated tubes with different groove depths is performed by numerical simulation. Meanwhile, physical quantity synergy analysis is performed to investigate the mechanism of heat transfer enhancement. The simulation results show that the overall performance of three-start spirally corrugated tubes with different groove depths has improved efficiently, and the PEC value of the tubes varies between 1.31 and 2.41, and the deeper the groove of the spirally corrugated tube is, the larger the PEC value is.

关 键 词：螺旋波纹管 层流 强化传热 PEC 多场协同 

分 类 号：TK124[动力工程及工程热物理—工程热物理]