圆盘抑制火箭贮箱内液面塌陷数值仿真研究  

Numerical Simulation of Liquid Surface Collapse in Rocket Tank Restrained by Disk

作　　者：黄仁建 夏晨[1] HUANG Renjian;XIA Chen(College of Energy and Power,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)

机构地区：[1]南京航空航天大学能源与动力学院,江苏南京210016

出　　处：《机械制造与自动化》2022年第3期108-112,共5页Machine Building & Automation

摘　　要：在液体火箭推进剂贮箱出流的过程中,液面会出现塌陷夹气现象,通常使用圆盘装置来抑制液面塌陷。对贮箱出流过程进行数值模拟,并基于塌陷现象分析出口流速、圆盘装置、过载对液面塌陷的影响规律。结果表明:圆盘装置、大过载有利于延迟液面发生塌陷的时间,减少推进剂的剩余量;出口流速、圆盘安装高度、直径变化对液面塌陷有较大的影响。In view of liquid level collapse and gas pipe trapping during the outflow of the liquid rocket propellant tank,usually restrained by disk device,the process of outflow from the propellant tank is numerically simulated.Based on the collapse phenomenon,the influences of export speed,the disc device and overload on the liquid level collapse are respectively analyzed.The results show disk device and large overload are beneficial to delaying the time of liquid surface collapse and can reduce the remaining amount of propellant,and export speed,the installation height and diameter of the disc have great influence on the liquid level collapse.

关 键 词：火箭贮箱 液面塌陷 圆盘 过载 数值模拟 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]