用于微重力下两相控温型储液器性能研究  

Performance Study of Two-phase Thermal-controlled Accumulator for Microgravity Environment

作　　者：孟庆亮[1,2] 周振华 赵振明 MENG Qing-Liang;ZHOU Zhen-Hua;ZHAO Zhen-Ming(Beijing Institute of Space Mechanics and Electricity,Beijing 100094,China;Beijing Key Laboratory of Advanced Optical Remote Sensing Technology,Beijing 100094,China)

机构地区：[1]北京空间机电研究所,北京100094 [2]先进光学遥感技术北京市重点实验室,北京100094

出　　处：《工程热物理学报》2021年第7期1770-1776,共7页Journal of Engineering Thermophysics

基　　金：国家自然科学基金资助项目(No.51806010)。

摘　　要：针对航天器用机械泵驱动两相流体回路的使用需求,本文设计了一种可以满足微重力下应用的两相控温型储液器。为验证储液器的工作性能,搭建了测试系统,对不同姿态下的控温特性和流体管理功能进行了研究。结果表明储液器内部毛细结构具备液体输运和气体隔离功能。为检验微重力下的气液分离功能,本文通过数值模拟对两相流体的运动特性进行了研究。结果表明液相在毛细力作用下被有效固定在储液器的下方,气相位于上方,气液分离功能得到验证。In the present study,one novel two-phase thermal-controlled accumulator for microgravity environment was designed to meet the requirement of mechanically pumped two-phase loop for the spacecraft.One MPTL setup was designed and constructed to verify the accumulator’s performance.The temperature control characteristics and the function of fluid management were tested under different postures.Test results indicated that the capillary structures in the accumulator possessed the functions of liquid transport and vapor isolating.For the purpose of examining the function of vapor and liquid separation,the dynamic behaviors of two-phase fluid were investigated by the numerical simulation.The simulation results showed that the liquid phase was fixed underneath the accumulator under the capillary force while the vapor located above it.The function of vapor-liquid separation was tested in this study.

关 键 词：储液器 微重力 气液两相流 精密控温 航天器热控 

分 类 号：V416[航空宇航科学与技术—航空宇航推进理论与工程] TK124[动力工程及工程热物理—工程热物理]