空间科学学报2026，Vol.46Issue(2)：362-370,9.DOI:10.11728/cjss2026.02.2024-0175
空间站高温柜材料实验过程中的传热分析
Heat Transfer Analysis of High Temperature Rack Material in Space Station
摘要
Abstract
The temperature field during solidification has an important influence on the microstruc-ture and properties of the material.Due to the difference of heat convection in space and ground envi-ronment,natural convection driven by gravity plays an important role in heat transfer in ground envi-ronment.However,in space,the microgravity environment almost eliminates the influence of gravity-dominated natural convection,which will lead to certain differences in the heat transfer characteristics between space and ground,resulting in differences in the temperature field distribution in the material experimental furnace.As a result,the temperature field obtained on the ground is different from that in space under the same temperature control conditions,thus affecting the equivalence of experimental conditions between space and ground materials.The heat transfer characteristics obtained from ground experiments cannot be directly applied to space experiments.This mismatch has a major impact on the space materials experiments.In order to obtain the heat transfer characteristics under microgravity conditions,a three-dimensional numerical model of heat transfer in the high temperature material experi-mental rack of the space station is established.In the modeling process,reasonable simplification is carried out according to the actual physical conditions,some minor heat transfer factors which have little influence on the overall temperature field are ignored.The temperature field simulation of the ground experiment and the space experiment was carried out respectively,and the temperature distribu-tion of the sample box was obtained.The temperature obtained by simulation was compared with the measured temperature.Through comprehensive analysis of the changes of heat transfer parameters in the space microgravity environment and the normal gravity environment on the ground,the heat transfer law similar to the space condition was obtained.The research results provide a new way to predict the space temperature field distribution based on the ground experiment results of high temperature mate-rials experiment rack and have important guiding significance for the future research of space materials.关键词
温场分布/空间实验/空间材料科学/空间高温实验柜/传热特征/数值模拟Key words
Temperature profile/Space experiment/Space materials science/Space high temperature experimental rack/Heat transfer characteristics/Numerical simulation分类
航空航天引用本文复制引用
鲁鹏飞,苏克显,潘秀红,罗兴宏,于强..空间站高温柜材料实验过程中的传热分析[J].空间科学学报,2026,46(2):362-370,9.基金项目
中国载人航天工程项目资助(Y69001A950) （Y69001A950）
