单回路液氦脉动热管气液两相流数值模拟  

Numerical simulation of gas-liquid two-phase flow in a single loop helium-based pulsating heat pipe

作　　者：吕秉坤 徐冬[2] 王维 施雅然 信纪军 方志春 李来风 Lv Bingkun;Xu Dong;Wang Wei;Shi Yaran;Xin Jijun;Fang Zhichun;Li Laifeng(Songshan Lake Materials Laboratory,Dongguan 523808,China;Chinese Academy of Sciences Key Laboratory of Cryogenics,Technical Institute of Physics and Chemistry,Beijing 100190,China)

机构地区：[1]松山湖材料实验室,东莞523808 [2]中国科学院低温工程学重点实验室(理化技术研究所),北京100190

出　　处：《低温工程》2023年第1期26-30,49,共6页Cryogenics

基　　金：国家自然科学基金(52071223);科技部国家重点研发计划项目(2022YFA1603904);广东省基础与应用基础研究基金(2020B1515120084);广东省重点领域研发计划(2020B0101340002)。

摘　　要：为了探究液氦脉动热管的传热机理,建立了单回路液氦脉动热管的二维数值模型。基于多相流VOF(Volume of Fluid)方法对该模型进行了数值求解,模拟了该液氦脉动热管的初始状态以及运行状态。其中初始状态为气液交替分布的饱和静止状态。运行状态为方向变化的脉动流动状态,流型为塞状流。分析了液氦脉动热管的流动与传热特性。Based on the Volumeof Fluid( VOF) model, a two-dimensional numerical model was developed to investigate the heat transfer mechanism of the single-loop helium-based pulsating heat pipe. The model was numerically solved based on the Volume of Fluid(VOF) method, and the initial state and operating state of the helium-based pulsating heat pipe were simulated. The initial state is a saturated static state with alternate distribution of vapor plug and liquid slug. The running state is the pulsating flow with changing direction, and the flow type is the plug flow. In addition,the flow and heat transfer characteristics of the helium-based pulsating heat pipe were analyzed.

关 键 词：液氦脉动热管 数值模拟 两相流 

分 类 号：TB65[一般工业技术—制冷工程] TB66