摘要
对一个单回路的闭式脉动热管内的气液两相流型进行了数值研究。该回路由一段水平的蒸发管,一段水平的冷凝管以及两段垂直的绝热管构成。在对控制单元进行质量、动量和能量守恒分析的基础上,分别建立了适用于毛细管内气液两相流的均相和分相模型,并将其应用于脉动热管中。模拟结果能较好的预测回路内各部分的流型及流态转换。
A flow modeling in a single closed loop pulsating heat pipes was presented, which comprises a horizontal evaporator tube, a horizontal condenser tube and two vertical adiabatic tubes. Based on the simultaneous solution of conservation of mass, momentum and energy, a homogeneous model and a separated two-fluid flow model have been developed for the single-loop pulsating heat pipes. The model allows prediction of two-phase flow parameters in each sub-section of the device thereby providing important insights into its operation.
出处
《流体机械》
CSCD
北大核心
2007年第12期58-60,69,共4页
Fluid Machinery
基金
德国国家自然科学基金资助(GR-412/33-2)
关键词
闭式脉动热管
单回路
流型
模拟研究
pulsating heat pipes
single loop
flow patterns
numerical simulation
