流体机械2025，Vol.53Issue(10)：94-101,8.DOI:10.3969/j.issn.1005-0329.2025.10.011
基于热容法的表面张力贮箱流动及传热特性研究
Study on flow and heat transfer characteristics of surface tension tank based on heat capacity method
摘要
Abstract
To achieve accurate measurement of residual propellant in on-orbit satellites,based on thermal-fluid-structure coupling calculation method,numerical calculations were conducted on the transient flow and heat transfer characteristics of propellant during heat capacity measurement.The flow characteristics,temperature distribution,and heat flux distribution characteristics of propellant in the tank under different settling acceleration conditions were analyzed.By comparing real-time temperature change data from simulation and experimental monitoring points,the accuracy of the numerical calculation model was verified.The results show that the sloshing frequency of liquid propellant in the tank increases with increasing settling acceleration.When settling acceleration increases from 0.066 5 m/s2 to 0.294 m/s2,the propellant sloshing frequency increases from 0.055 Hz to 0.116 Hz.The temperature change of fluid above the gas-liquid interface is more significant compared to that below the interface.After continuously heating the tank surface at 180 W total power for 180 seconds,there exists a certain temperature difference between the outer wall of the tank and the fluid-structure interface,with an average temperature difference of 0.12 K.The lower the monitoring point position,the slower the temperature rises.The main frequency of temperature change at monitoring points inside the tank is consistent with the variation in liquid propellant sloshing frequency.The research results can provide references for the measurement of residual propellant quantity in on-orbit satellites.关键词
热容法/表面张力贮箱/微重力环境/推进剂/流动特性/传热特性Key words
heat capacity method/surface tension tank/microgravity environment/propellant/flow characteristics/heat transfer characteristics分类
机械制造引用本文复制引用
翟璐璐,张梁,朱祖超,刘锦涛,李文..基于热容法的表面张力贮箱流动及传热特性研究[J].流体机械,2025,53(10):94-101,8.基金项目
浙江省科技计划项目(2025C01085) （2025C01085）
中国机械工业集团有限公司科研专项项目(ZDZX2024-11) （ZDZX2024-11）
北京市高效能及绿色宇航推进工程技术研究中心开放基金课题(LabASP-2022-02) （LabASP-2022-02）
