航天器工程2018，Vol.27Issue(2)：68-73,6.DOI:10.3969/j.issn.1673-8748.2018.02.011
航天器热控单相流体回路水击效应仿真研究
Simulation Analysis on Water Hammer Effect of Single Phase Fluid Loop Used in Thermal Control of Spacecraft
摘要
Abstract
Based on the potential paralysis from water hammer to the pipes and facilities of single phase fluid loop used in spacecraft,this paper proposes a mathematical model of simulation on water hammer effect by characteristics method,and establishes the boundary conditions as well as numerical methods of water hammer analysis.Aimed at a typical single phase fluid loop with parallel branches,the transient state water hammer effect in different conditions are analyzed, the relationship between the action of valves and water hammer effect is obtained.The simulating results demonstrate that the order and interval of valves'action will cause varying degrees of wa-ter hammer.Thus a method to avoid the water hammer by closing upstream valve first or opening downstream valve first and increasing the interval of valves'action is proposed.It can provide reference for the reliability design of single phase fluid loop for spacecraft.关键词
单相流体回路/水击/特征线法Key words
single phase fluid loop/water hammer/characteristics method分类
通用工业技术引用本文复制引用
黄磊,王福军,于新刚,范宇峰..航天器热控单相流体回路水击效应仿真研究[J].航天器工程,2018,27(2):68-73,6.基金项目
国家重大航天工程 （）
