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[1]朱子勇,孙万民,王占林.某试验台LH2贮箱气体置换过程数值模拟[J].火箭推进,2011,37(06):52-60.
　ZHU Zi-yong,SUN Wan-min,WANG Zhan-lin.Numerical simulation of gas replacement process in LH2 tank of test-bed[J].Journal of Rocket Propulsion,2011,37(06):52-60.

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某试验台LH2贮箱气体置换过程数值模拟

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V] 卷: 37 期数: 2011年06期页码: 52-60 栏目: 测控与试验出版日期: 2011-12-15

Title:: Numerical simulation of gas replacement process in LH2 tank of test-bed

文章编号:: 1672-9374(2011)06-0052-10

作者:: 朱子勇; 孙万民; 王占林; 北京航天试验技术研究所，北京 100074

Author(s):: ZHU Zi-yong; SUN Wan-min; WANG Zhan-lin; Beijing Institute of Aerospace Testing Technology, Beijing 100074,China

关键词:: LH2贮箱; 置换; 数值模拟

分类号:: V434-34

文献标志码:: A

摘要:: 首先应用C#软件编制贮箱气体置换计算程序，用该程序对不同N2、H2充气压力和放气终压对贮箱置换的影响进行分析，通过对比分析得出最优置换方案；其次利用FLUENT软件对某运载火箭发动机动力系统试验LH2贮箱气体置换过程进行数值计算，包括N2充气置换、H2充气置换和LH2贮箱缩比尺寸和全尺寸数值计算。对H2置换过程中不同的放气终压也进行了数值计算，并将缩比尺寸数值计算结果同现有试验台LH2贮箱置换进行比较；最后数值计算了LH2贮箱H2充气完成后混合均匀需要的时间。

Abstract:: The program of gas replacement in the tank is drawn up with C# NET software. The influence of different filling pressure and final pressure after deflation of nitrogen and hydrogen on gas replacement in the tank is analyzed with the program. An optimum scheme of gas replacement is determined by comprehensive comparison. The numerical calculation of gas replacement process in the liquid hydrogen testing tank of a rocket engine power system is carried out with FLUENT software. The numerical calculation includes the nitrogen filling replacement, hydrogen filling replacement, downsizing scaling and full-size liquid hydrogen tank. The results of numerical calculation are compared with the replacement of existing liquid hydrogen tank on the test-bed. The duration time of the gas mixing uniformity after completion of the hydrogen filling is calculated.

备注/Memo

收稿日期：2011-08-11；修回日期：2011-09-27
基金项目：中国航天科技集团公司支撑项目（2002JY05）
作者简介：朱子勇（1979—），男，硕士，研究领域为液体火箭发动机试验及仿真技术

更新日期/Last Update: 1900-01-01