氩工质连续激光加热推力器的数值仿真

李小康; 张育林; 程谋森; 鄢昌渝

氩工质连续激光加热推力器的数值仿真

国防科学技术大学航天与材料工程学院,长沙 410073

基金项目: 国家部委基金

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- 文章访问数: 1528
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- 被引次数: 0
出版历程
- 收稿日期: 2009-11-20
- 修回日期: 2010-02-05
- 刊出日期: 2011-01-28

Numerical simulation of a continuous wave laser powered thruster with argon propellant

College of Aerospace and Materials Engineering, National University of Defense Technology,Changsha 410073,China

摘要

摘要: 对氩气工质的连续激光推力器内加热与流动过程进行数值模拟,建立了包含激光吸收、化学反应、高温效应、黏性、扩散、热传导以及辐射效应等物理机制的模型.推力室内二维轴对称流场采用可压缩Navier-Stokes方程描述,用SIMPLEC(semi-implicit method for pressure-linked equations consistent)算法求解.对解算出的流场压力和黏性应力积分获得推力,其值与类似构型推力器的实验结果吻合较好.在不同流量条件下对推力器的流场进行了计算,通过分析其特征,提出了改进推力器性能的思路.
- 激光推进 /
- 连续波 /
- 氩等离子体 /
- 推力器 /
- 数值仿真
Abstract: The heating and flow process in a continuous wave laser powered thruster using argon as propellant was modeled numerically.A model of physical mechanisms including laser absorption,chemical reaction,high-temperature thermodynamics properties,viscosity,diffusion,heat conduction and the effect of radiation was built up.The two-dimensional axisymmetric flow filed described by Navier-Stokes equations was solved by pressure-based SIMPLEC(semi-implicit method for pressure-linked equations consistent) algorithm.The thrust was computed by integrating the pressure and viscosity stress all over the wall,and the value was consistent with the experimental result of a similar configuration.Then the characteristics of the filed of a thruster under different mass flow rates were analyzed,and the methods for performance improvement were presented.
- laser propulsion /
- continuous wave /
- argon plasma /
- thruster /
- numerical simulation

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参考文献(13)

[1]	Black J W,Krier H,Zerkle D,et al.Characterization of laser-sustained plasma behavior during 10kW laser thruster tests .AIAA 92-3022,1992.
[2]	Uehara S,Inoue T,Komurasaki K,et al.An experimental study on energy conversion process of an in-space CW laser thruster //Proceedings of Third International Symposium on Beamed Energy Propulsion.Melville:American Institute of Physics,2005:254-264.
[3]	Rachuk V S,Guterman V Y,Ivanov A V.Experimental investigations of laser propulsion by using gas-dynamic laser //Proceedings of Fourth International Symposium on Beamed Energy Propulsion.Melville:American Institute of Physics,2006:48-57.
[4]	Glumb R J,Krier H.Two-dimensinal model of laser-sustained plasmas in axisymmetric flowfileds[J].AIAA Journal,1986,24(8):1331-1336.
[5]	Jeng S M,Keefer D R,Welle R,et al.Numerical study of laser-sustained argon plasmas in a forced convective flow .AIAA 86-1078,1986.
[6]	Morales P M,Toyoda K,Komurasaki K,et al.CFD simulation of a 2kW class laser thruster .AIAA 2001-0650,2001.
[7]	郑力铭,朱定强,徐旭,等.激光推进火箭发动机吸收室的数值模拟[J].推进技术,2002,23(5):387-390. ZHENG Liming,ZHU Dingqiang,XU Xu,et al.Numerical simulation of flow in the absorption chamber of laser propulsion rocket engine[J].Journal of Propulsion Technology,2002,23(5):387-390.(in Chinese)
[8]	王海兴,陈熙.激光推进的初步数值模拟研究[J].工程热物理学报,2004,25(Suppl.):83-86. WANG Haixing,CHEN Xi.A preliminary modeling study on laser propulsion[J].Journal of Engineering Thermophysics,2004,25(Suppl.):83-86.(in Chinese)
[9]	Kruger C H.Nonequilibrium effects in thermal plasma chemistry[J].Plasma Chemistry and Plasma Processing,1989,9(4):435-443.
[10]	Raizer Y P,Tybulewicz A.Laser-induced discharge phenomena[M].New York: Plenum Publishing Corporation, 1977.
[11]	陈熙.高温电离气体的传热与流动[M].北京:科学出版社,1993.
[12]	Emmons H W.Arc measurement of high-temperature gas transport properties[J].The Physics of Fluids,1967,10(6):1125-1136.
[13]	Toyoda K,Komurasaki K,Arakawa Y.Thrust performance of a CW laser thruster in vacuum[J].Vacuum,2002,65(3-4):383-388.