论文部分内容阅读
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 numerical study was conducted on the gas-liquid two-phase flow pattern in a closed-loop pulsating heat pipe with a single loop. The circuit consists of a horizontal evaporation tube, a horizontal condensation tube and two vertical insulation tubes. Based on the mass, momentum and energy conservation analysis of the control unit, a homogeneous and a phase separation model suitable for the gas-liquid two-phase flow in a capillary tube was established and applied to a pulsating heat pipe. The simulation results can better predict the flow pattern and flow pattern of each part in the loop.