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2018 Volume 27 Issue 2
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Si-Yin Zhou, Xue-Ke Che, Di Wang, Wan-Sheng Nie. 2018: Effect of actuating frequency on plasma assisted detonation initiation, Chinese Physics B, 27(2): 468-475. doi: 10.1088/1674-1056/27/2/025208
Citation: Si-Yin Zhou, Xue-Ke Che, Di Wang, Wan-Sheng Nie. 2018: Effect of actuating frequency on plasma assisted detonation initiation, Chinese Physics B, 27(2): 468-475. doi: 10.1088/1674-1056/27/2/025208
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Effect of actuating frequency on plasma assisted detonation initiation

  • Space Engineering University, Beijing 101416, China

  • Space Engineering University, Beijing 101416, China;Science and Technology on Scram jet Laboratory, Changsha 410073, China

  • Available Online: 01/01/2018
  • Fund Project: the Open Project of Science and Technology on Scramjet Laboratory,China(Grant CG-2014-05-118)%the National Natural Science Foundation of China(Grant 91441123)
  • Aiming at studying the influence of actuating frequency on plasma assisted detonation initiation by alternating current dielectric barrier discharge,a loosely coupled method is used to simulate the detonation initiation process of a hydrogenoxygen mixture in a detonation tube at different actuating frequencies.Both the discharge products and the detonation forming process which is assisted by the plasma are analyzed.It is found that the patterns of the temporal and spatial distributions of discharge products in one cycle are not changed by the actuating frequency.However,the concentration of every species decreases as the actuating frequency rises,and atom O is the most sensitive to this variation,which is related to the decrease of discharge power.With respect to the reaction flow of the detonation tube,the deflagration-to-detonation transition (DDT) time and distance both increase as the actuating frequency rises,but the degree of effect on DDT development during flow field evolution is erratic.Generally,the actuating frequency affects none of the amplitude value of the pressure,temperature,species concentration of the flow field,and the combustion degree within the reaction zone.
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Effect of actuating frequency on plasma assisted detonation initiation

  • Available Online: 01/01/2018

Abstract: Aiming at studying the influence of actuating frequency on plasma assisted detonation initiation by alternating current dielectric barrier discharge,a loosely coupled method is used to simulate the detonation initiation process of a hydrogenoxygen mixture in a detonation tube at different actuating frequencies.Both the discharge products and the detonation forming process which is assisted by the plasma are analyzed.It is found that the patterns of the temporal and spatial distributions of discharge products in one cycle are not changed by the actuating frequency.However,the concentration of every species decreases as the actuating frequency rises,and atom O is the most sensitive to this variation,which is related to the decrease of discharge power.With respect to the reaction flow of the detonation tube,the deflagration-to-detonation transition (DDT) time and distance both increase as the actuating frequency rises,but the degree of effect on DDT development during flow field evolution is erratic.Generally,the actuating frequency affects none of the amplitude value of the pressure,temperature,species concentration of the flow field,and the combustion degree within the reaction zone.

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