舱外航天服内流场及温度场仿真分析  

Simulation Analysis for Flow and Temperature Field in EVA Spacesuit

作　　者：李金林[1] 张海荣 LI Jinlin;ZHANG Hairong(National State Key Laboratory of Human Factors Engineering,China Astronaut Research and Training Center,Beijing 100094,China;Ch-auto Technology Co.Ltd,Beijing 100031,China)

机构地区：[1]中国航天员科研训练中心人因工程重点实验室,北京100094 [2]北京长城华冠汽车科技股份有限公司,北京100031

出　　处：《载人航天》2022年第2期183-189,共7页Manned Spaceflight

基　　金：人因工程重点实验室自主研究基金资助项目(SYFD140051805)。

摘　　要：为验证舱外航天服内空间布局和通风管路设计,利用飞天舱外航天服数值模型和标准人体模型,通过流体力学仿真软件STAR-CCM+分析计算,研究了航天服通风流场和温度场分布,获取了服内流线和温度云图。仿真分析结果表明:舱外航天服内流场整体流畅,上下肢通风流量比为3∶2;面部通风流线平稳且分布均匀,可有效防止面窗起雾;头部至四肢气温逐渐升高,距离身体越远温度越低,流线平稳区域温度相对较低。To verify the space layout and ventilation pipeline design of EVA(Extravehicular Activity)spacesuit,the air flow field and temperature field distribution of spacesuit were studied.The numerical model of Feitian EVA spacesuit and the standard manikin were adopted and the hydrodynamics simulation software STAR-CCM+was used for analysis and calculation.The streamline and temperature cloud map in the spacesuit were obtained.The simulation results showed that the flow field in the spacesuit was smooth and the ventilation flow ratio of the upper and lower limbs was 3∶2.The streamlines around the face were stable and distributed evenly which could effectively prevent the face window from fogging.It was found that the temperature increased gradually from the head to the limbs and the temperature decreased with the increase of distance to the body.The temperature was lower in the areas where the streamlines were smooth.

关 键 词：舱外航天服 流场 温度场 仿真分析 

分 类 号：V445􀆰[航空宇航科学与技术—飞行器设计]