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Investigation on Pressure Properties of Capillary Ablation Plasma and Jet


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Investigation on Pressure Properties of Capillary Ablation Plasma and Jet
LIU Dong-yaoGUO Hai-boYU Yong-gangZHOU Yan-huang
School of Power Engineering,NUST,Nanjing 210094,China
plasmas ablation plasma plasma jets pressure thrust
To investigate the influences of ablation plasma and jet to the interior ballistics of electrothermal propulsion in the ignition and augment of propellant combustion,the pressure-time profiles of plasma and jet are studied experimentally,and the thrust-time profiles are tested primarily.The thrust of plasma jet is calculated by the thrust equations and the parameters of jets.The experimental results indicate that the pressure amplitudes of plasma and the jets depend on the power of pulse power system.There are time delay between the pressure of plasma and jets,and the later dissipates more quickly than the former.The measured thrusts oscillate for a relative long time,and the peak values of thrusts are synchronous with the pressure of jets.The calculation results of thrust agree with the experimental ones.


[ 1] Benson D A, Cah ill P A. Dynam ic high-pressure studies of an e lectro therm a l cap illary[ R]. AD-A242 661, 1992. 349- 358.
[ 2] NuscaM J, M cQua idM J, AndersonW R. Investigation of a high-ve loc ity, mu lt-i spec ies jet undergo ing unsteady expansion into open a ir [ R] . A IAA 2000- 0819, 2000.
[ 3] NuscaM J, AndersonW R, M cQuaidM J. M u ltispec ies reac ting flow m ode l fo r the p lasm a e fflux o f an ETC ign iter) application to an open-a ir plasm a jet imp ing ing on an instrum ented probe [ R ]. ARL-TR- 3227, 2004.
[ 4] 谢玉树. 等离子体与火药相互作用的研究[ D]. 南京: 南京理工大学图书馆, 2005.
[ 5] 李海元, 栗保明, 李鸿志. 等离子体点火条件下火药燃速的实验研究[ J]. 弹道学报, 2007, 19( 2): 78 - 81.
[ 6] 刘东尧, 周彦煌. 电弧等离子体一维非定常数值模拟[ J]. 高压物理学报, 2001, 15( 4): 249- 253.
[ 7] 周彦煌, 刘东尧, 余永刚. 非稳态等离子射流在液体中的膨胀特性[ J]. 南京理工大学学报(自然科学版) , 2003, 27( 5): 525- 529.


Last Update: 2012-11-19