板式脉动热管强化传热方法研究  

Research on Enhancing Heat Transfer of Flat Plate Loop Pulsating Heat Pipe

作　　者：陈陶菲[1] 徐德好[1] 刘向东[2] 

机构地区：[1]南京电子技术研究所,江苏南京210039 [2]东南大学能源与环境学院,江苏南京210096

出　　处：《电子机械工程》2011年第4期5-8,共4页Electro-Mechanical Engineering

摘　　要：为了研究板式脉动热管的传热性能强化的方法,对原型和改进型两种不同板式脉动热管传热特性进行数值分析比较。基于VOF方法建立板式脉动热管汽液两相流动及相变传热三维非稳态数学模型,仿真得到不同加热功率条件下热管内流型演化和温度分布。仿真结果表明,改进型脉动热管在高功率阶段,整体等效热阻小于原型。To research the method of enhancing heat transfer of flat plate loop pulsating heat pipe,the article compares the heat transfer character of the original heat pipe and the improved one by numerical simulation.Based on the VOF（volume of fluid） method,a three-dimensional unsteady mathematical model was developed to describe the vapor-liquid two-phase flow and phase change heat transfer in the flat plate loop pulsating heat pipe.The two-phase flow pattern transition and the temperature distribution in the flat plate loop pulsating heat pipe under different heat load conditions was numerically investigated using the developed model.The result shows that the heat transfer character of the improved heat pipe can be enhanced under high heat load condition.

关 键 词：板式脉动热管 传热 仿真 

分 类 号：TK124[动力工程及工程热物理—工程热物理]