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偏二甲肼与二氧化氮气相反应的数值模拟研究

Numerical Simulation of Gas Phase Reaction between UDMH and NO_2
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摘要 为了分析偏二甲肼(UDMH)与四氧化二氮(NTO)推进剂气相泄漏后的反应情况,研究了液体推进剂贮存条件下的反应机理。采用量子化学的方法计算出生成物—1,1,4,4-四甲基-2-四氮烯(TMTZ)的生成焓,并应用数值模拟方法对偏二甲肼与二氧化氮的反应过程进行仿真,将数值模拟结果与试验数据进行对比。结果表明:TMTZ分子的生成焓为-369.15kJ/mol,该反应的数值模拟结果与试验值的误差均在合理范围内;该气相反应机理可为推进剂的相关研究提供参考。 In order to analyze the reaction of UDMH and NTO propellant after gas phase leakage, Reaction mechanism of liquid propellant under storage conditions was analyzed. The enthalpy of formation of the TMTZ was calculated by quantum chemistry method, and The reaction was simulated in FLUENT software, besides the calculated results were compared and analyzed with the experimental values. The results shows that The enthalpy of formation of TMTZ molecule is -369.15kJmol^-1 and deviation between numerical simulation and experimental data is within a reasonable range. The gas-phase reaction mechanism can provide a reference for the related research of propellants in the future.
作者 詹翔 崔村燕 周宵灯 辛腾达 韩向阳 Zhan Xiang;Cui Cun-yan;Zhuo Xiao-deng;Xin Teng-da;Han Xiang-yang(Space Engineering University, Beijing, 101416)
机构地区 航天工程大学
出处 《导弹与航天运载技术》 CSCD 北大核心 2019年第1期59-63,79,共6页 Missiles and Space Vehicles
关键词 偏二甲肼 四氧化二氮 1 1 4 4-四甲基-2-四氮烯 生成焓 数值模拟 UDMH NTO 1,1,4,4-Tetramethyl-2-tetrazene enthalpy of formation numerical simulation
作者简介 詹翔(1994-),男,硕士研究生,主要研究方向为航天系统安全性和可靠性;崔村燕(1964-),女,副教授,主要研究方向为航天系统安全性和可靠性;周宵灯(1994-),男,硕士研究生,主要研究方向为航天系统安全性和可靠性;辛腾达(1990-),男,博士研究生,主要研究方向为航天任务分析与设计;韩向阳(1994-),男,硕士研究生,主要研究方向为航天任务分析与设计。
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