Infrared and Laser Engineering, Volume. 46, Issue 2, 239005(2017)
Effect of pulsed plasma on fuel jet in scramjet cavity
To research the influence of quasi-DC transversal electrical discharge plasma on the fuel jet flowfield in the combustor of scramjet under the pulse control, the pulse quasi-DC transversal electrical discharge plasma model was established. Under different pulse excitation frequency, taking advantages of numerical simulation, the influence of plasma on the formation feature of cavity fuel jet flowfield, loss of combustor total pressure, the mixing efficiency of the jet downstream was analyzed. The results show that, under pulse plasma condition, the position and intensity of the upstream separation shock can be controlled effectively, the periodic fluctuation of the cavity flowfield due to the pulse control, which improved the mixing efficiency of the fuel and mainstream, can decrease the total combustor pressure losses contrast to steady control.
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Zheng Zhi, Nie Wansheng, Zhang Zheng, Li Jinlong, Zhou Siyin. Effect of pulsed plasma on fuel jet in scramjet cavity[J]. Infrared and Laser Engineering, 2017, 46(2): 239005
Category: 燃烧场探测与分析
Received: Jun. 10, 2016
Accepted: Jul. 20, 2016
Published Online: Mar. 31, 2017
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