Study on the influence of incentive parameters on plasma-enhanced jet mixing

Li Liang; Li Xiuqian; Che Xueke; Zheng Tikai; Li Jinlong; Nie Wansheng

doi:10.11729/syltlx20180031

Volume 32 Issue 5

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Journal of Experiments in Fluid Mechanics > 2018 > 32(5): 41-47. > DOI: 10.11729/syltlx20180031

Li Liang, Li Xiuqian, Che Xueke, Zheng Tikai, Li Jinlong, Nie Wansheng. Study on the influence of incentive parameters on plasma-enhanced jet mixing[J]. Journal of Experiments in Fluid Mechanics, 2018, 32(5): 41-47. DOI: 10.11729/syltlx20180031

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Study on the influence of incentive parameters on plasma-enhanced jet mixing

1.
Graduate College, Space Engineering University, Beijing 101416, China
2.
Department of Space Science and Technology, Space Engineering University, Beijing 101416, China

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Received Date: March 08, 2018
Revised Date: April 07, 2018

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Abstract

In order to improve the mixing efficiency of rocket engine propellant and to explore the influence of plasma on the mixing characteristics of single rectangular jet, a plasma jet generation and control system is designed. Particle image velocimetry is used to measure the influence of surface dielectric barrier discharge plasma actuator on single jet mixing. Compared with non-excitation condition, when the excitation voltage is 5, 6 and 7kV, the width and mixing characteristics of jet are enhanced with the increase of voltage, and the maximum attenuation rate of jet centerline speed increases by about 20%; the jet decays and its width increases obviously while the pulse frequency increases; when the excitation voltage and the pulse frequency are fixed and the duty cycle is changed, the width of jet is the largest in the range of 50%~70%, where the decay effect is the strongest.
- jet mixing enhancement,
- surface dielectric barrier discharge,
- plasma flow control,
- frequency,
- duty cycle

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