热水火箭发动机非稳态工作过程数值模拟

推进技术 ›› 2015, Vol. 36 ›› Issue (6): 801-807.

• 总体与系统 • 下一篇

热水火箭发动机非稳态工作过程数值模拟

孙巍伟,魏志军,王宁飞

北京理工大学宇航学院，北京 100081,北京理工大学宇航学院，北京 100081,北京理工大学宇航学院，北京 100081

发布日期:2021-08-15
作者简介:孙巍伟(1987—)，男，博士生，研究领域为热水火箭发动机。

Numerical Simulation of Unsteady Working Process of

School of Aerospace Engineering，Beijing Institute of Technology，Beijing 100081，China,School of Aerospace Engineering，Beijing Institute of Technology，Beijing 100081，China and School of Aerospace Engineering，Beijing Institute of Technology，Beijing 100081，China

Published:2021-08-15

摘要/Abstract

摘要： 为了更好地了解热水火箭发动机的工作特性，建立了热水火箭发动机内流场的数值计算模型，对发动机非稳态的工作过程进行模拟，并与实验数据对比进行验证。通过对发动机工作过程的研究，发现在发动机工作过程中，喷管之前相变较缓慢，而在喷管中相变比较剧烈，从而使得喷管部分的气体体积分数梯度较大，越靠近出口，气体体积分数越大，出口气体体积分数高达90%以上，其温度越低。发动机内部压力首先急剧降到初始温度对应的饱和压强，然后缓慢降低。把热水火箭发动机的工作过程分为三个阶段:初始段、中间段和拖尾段。发动机的总冲主要集中在中间段，约占总比冲的70%以上。

关键词: 热水火箭发动机；两相流；闪蒸；数值模拟

Abstract: In order to understand the working performance in the hot water rocket motor better，a numerical model of the flow field of hot water rocket motor was established and then the unsteady working process was simulated.And the numerical model was validated via comparing with the experimental data. According to the study of the working process of the motor，it is found out that in the working process，phase change process is slow in the main body while it is severe in the nozzle，so the gradient of vapor volume fraction in the nozzle is larger.The closer to the nozzle exit，the greater the vapor volume fraction，vapor volume fraction at the exit is above 90%，and the lower the temperature.The pressure in the motor firstly drops to the saturated pressure corresponding to the initial temperature and then decreases slowly.And the working process are divided into three stages，which are initial segment，middle segment，and a trailing segment.Total?impulse of the motor is mainly concentrated in the middle segment，which is about 70% above of total?impulse.

Key words: Hot water rocket motor；Two-phase flow；Flash evaporation；Numerical simulation

孙巍伟,魏志军,王宁飞. 热水火箭发动机非稳态工作过程数值模拟[J]. 推进技术, 2015, 36(6): 801-807.

SUN Wei-wei,WEI Zhi-jun,WANG Ning-fei. Numerical Simulation of Unsteady Working Process of[J]. Journal of Propulsion Technology, 2015, 36(6): 801-807.

参考文献

[1] Harry Adirim, Roger E Lo, Norbert Pilz, et al. Hot Water Propulsion Development Status for Earth and Space Applications[R]. AIAA 2006-4566.
[2] 孙巍伟, 李世鹏, 魏志军, 等. 热水火箭发动机实验研究[J].推进技术, 2013, 34(6):853-859.(SUN Wei-wei, LI Shi-peng, WEI Zhi-jun, et al. Experimental Investigation on Hot Water Rocket Engine [J]. Journal of Propulsion Technology, 2013, 34(6):853-859.)
[3] Adirim H, Lassmann J. Investigation into a Payload Propulsion Module System as an Alternative to UpperStages for Future Reusable SubOrbital Launch Vehicles[R].ILR-Mitteilung.Nr.331, Germany:SIGLE, 1998.
[4] Deneu F, Roenneke A, Spies J. Candidate Concepts fora European RLV[C]. Bremen:54th International Astronautial Congress, 2003.
[5] Pilz N, Adirim H, Lo R, et al. Hot Water Propulsion for Horizontal Rocket Assisted Take-Off Systems for Future Reusable Launch Vehicles[C]. Sardinia:2nd International Conference on Green Propellants for Space Propulsion, 2004.
[6] Gibbon D, Baker A, Coxhill I, et al. The Development of a Family of Resistojet Thruster Propulsion Systems for Small Spacecraft[C]. Logan:17th Annual AIAA/USU Conference on Small Satellites, 2003.
[7] 李柏震. 高压闪蒸室内部流场数值模拟[D].哈尔滨:哈尔滨工程大学, 2009.
[8] Peterson R J, Grewal S S, El-Wakil M M.Investigations of Liquid Flashing and Evaporation Due to Sudden Depressurization[J].International Journal of? Heat Mass Transfer, 1984, 27(2):301-308.
[9] Mignot G, Anderson M, Corradini M.Critical Flow Experiment and Analysis for Supercritical Fluid[J]. Nuclear Engineering and Technology, 2008, 40(2).
[10] Saury D, Harmand S, Siroux M.Experimental Study of Flash Evaporation of a Water Film[J].International Journal of? Heat and Mass Transfer, 2002, 45(16):3447-3457.
[11] Downar-Zapolskip, Bilickp Z, Bolle L, et al. The Non-equilibrium Relaxation Model for One-Dimensional Flashing Liquid Flow[J].International Journal of? Multi-phase Flow, 1996, 22(3):473-483.
[12] Timo Siikonen.Numerical Method for One-Dimensional Two-phase Flow[J].Numerical Heat Transfer, Part A:Applications, 1987, 12(1):1-18.
[13] Marsh C A, O’Mahony A P.Three-Dimensional Modellingof Industrial Flashing Flows[J].Progress in Computational Fluid Dynamics, 2009, 9(6/7):393-398.
[14] Bruce G Lindsay.Mixture Models: Theory, Geometry, and Applications[M].Hayward: Institute of Mathematical Statistics, 1995.
[15] 瓦格纳 W, 克鲁泽 A. 水和蒸汽的性质[M].项卫红译, 北京:科学出版社, 2003.(编辑:梅瑛)　　　　　　　　　　　　　*　收稿日期:2014-04-08；修订日期:2014-06-11。作者简介:孙巍伟(1987—),男,博士生,研究领域为热水火箭发动机。E-mail:332915161@bit.edu.cn

热水火箭发动机非稳态工作过程数值模拟

Numerical Simulation of Unsteady Working Process of

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