振荡流热管振荡相变传热特性  

THE OSCILLATING PHASE CHANGE HEAT TRANSFER CHARACTERISTICS OF OSCILLATING HEAT PIPE

作　　者：冼海珍[1] 刘晓敏[1] 刘登瀛[2] 杨勇平[1] 杜小泽[1] 

机构地区：[1]华北电力大学能源与动力工程学院,北京市“能源的安全与清洁利用”重点实验室,北京102206 [2]中国科学院工程热物理研究所,北京100190

出　　处：《工程热物理学报》2010年第4期685-688,共4页Journal of Engineering Thermophysics

基　　金：国家自然科学基金资助项目(No.50876029);863计划(No.2009AA05Z418)

摘　　要：本文建立了环路型振荡流热管物理数学模型。数值计算结果表明,汽泡的交替膨胀和压缩使管内工质维持振荡运动,热管冷却端的散热情况是影响振荡流热管内部振荡运动的重要因素。热管内部振荡运动受倾角、充液率和加热功率影响,其变化趋势与前期实验结果基本一致。热管内脉动运动愈剧烈,热管的传热性能愈好。In this paper,theoretical models were developed for a close loop oscillating heat pipe. The numerical results showed that the alternating expansion and compression of vapors caused a self-sustained oscillating flow inside the heat pipe,which was affected by the heat dissipation at the cooling section.The oscillating action also affected by the inclination angle,filling ratio and heating power,the severer the oscillatory action,the better the heat transfer performance.

关 键 词：振荡流热管 振荡相变传热 数值计算 

分 类 号：TK124[动力工程及工程热物理—工程热物理]