Influence of Plasma Chemical Kinetic Effects on Hydrogen Combustion in a Scramjet Combustor

被引：0

作者：

Zheng Z. ^{[1
]}

Nie W.-S. ^{[1
]}

Wu H.-L. ^{[1
]}

Che X.-K. ^{[1
]}

机构：

[1] Department of Space Science and Technology, Space Engineering University, Beijing

来源：

Tuijin Jishu/Journal of Propulsion Technology | 2019年 / 40卷 / 01期

关键词：

Chemical kinetic effects; Numerical simulation; Plasma; Scramjet engine;

D O I：

10.13675/j.cnki.tjjs.170757

中图分类号：

学科分类号：

摘要：

To study the influence and mechanism of plasma chemical kinetics on the combustion flow field of hydrogen/air in a scramjet combustor, different concentrations of active particles has been added in hydrogen fuel jet to simulate the chemical kinetic effects of plasma. Under the different active particles concentrations, the formation of product water, the pressure distribution around the rear wall and the mechanism of plasma chemical kinetics in combustion chamber are numerically studied. The results show that, in the early stage of combustion, the higher concentration of active particles, the faster formation of combustion products and the wider the distribution in combustor. The effect of plasma heightens the pressure peak value near the end point of the rear edge center domain of cavity, the maximum increase of peak value is 9.4%, and also weakens the pressure peak value near the side region of rear edge, the maximum damping of peak value is 7.7%. The plasma chemical kinetics accelerates the reaction of the original core reaction of hydrogen and oxygen, so that the O, OH and the other intermediate particles needed for subsequent combustion are rapidly accumulated, thus speeding up the overall reaction and shortening the formation time of the products. © 2019, Editorial Department of Journal of Propulsion Technology. All right reserved.

引用

页码：151 / 157

页数：6

共 14 条

[1]

Scott A.R., Allan P., Performance of a Scramjet Combustor with Combined Normal and Tangential Fuel Injection, Journal of Propulsion and Power, 22, 5, pp. 1334-1338, (2006)

[2]

Varatharajan B., Williams F.A., Ethylene Ignition and Detonation Chemistry, Part 2: Ignition Histories and Reduced Mechanisms, Journal of Propulsion and Power, 18, 2, pp. 352-362, (2002)

[3]

Starikovskiy A., Aleksandrov N., Plasma-Assisted Ignition and Combustion, Progress in Energy and Combustion Science, 39, 1, pp. 61-110, (2013)

[4]

Sun W., Ju Y., Nonequilibrium Plasma-Assisted Combustion: A Review of Recent Progress, Journal of Plasma and Fusion Research, 89, 4, pp. 208-219, (2013)

[5]

Starikovskaia S.M., Plasma-Assisted Ignition and Combustion: Nanosecond Discharges and Development of Kinetic Mechanisms, Journal of Physics D: Applied Physics, 47, 35, (2014)

[6]

Kimura I., Aoki H., Kato M., The Use of a Plasma Jet for Flame Stabilization and Promotion of Combustion in Supersonic Air Flows, Combustion and Flame, 42, 3, pp. 297-305, (1981)

[7]

Brieschenk S., O'Byrne S., Kleine H., Laser-Induced Plasma Ignition Studies in a Model Scramjet Engine, Combustion and Flame, 160, 1, pp. 145-148, (2013)

[8]

Bao A., Lou G., Nishihara M., On the Mechanism of Ignition of Premixed Co-Air and Hydrocarbon-Air Flows by Nonequilibrium RF Plasma

[9]

Watanabe J., Abe N., Takita K., Effect of a Rearward-Facing Step on Plasma Ignition in Supersonic Flow, Journal of Spacecraft and Rockets, 46, 3, pp. 561-567, (2009)

[10]

Liu Y., Dou Z.-G., Yang B., Et al., Experimental Investigation on Ignition of Ethylene/Air by Plasma Jet in Supersonic Combustor, Journal of Propulsion Technology, 38, 7, pp. 1532-1538, (2017)

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