Spray Detonation Initiation by Controlled Triggering of Electric Dischargers
Spray Detonation Initiation by Controlled Triggering of Electric Dischargers
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DOI：
10.2514/1.5969
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发表时间：
2003-07
影响因子：
1.9
通讯作者：
S. Frolov;V. Basevich;V. S. Aksenov;S. Polikhov
中科院分区：
文献类型：
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作者：
S. Frolov;V. Basevich;V. S. Aksenov;S. Polikhov
介绍了连续触发放电器引发正己烷液雾在空气中的单脉冲和多脉冲受限爆轰实验研究。与单脉冲模式类似，多脉冲操作模式显示了爆轰起爆能量对触发放电器之间的时间延迟的共振依赖性。有一个潜在的相当大的减少在爆轰起爆能量与减小管直径和安装的湍流螺旋之间的放电。该技术被认为是有前途的脉冲爆震发动机的应用。标称C1、C2 =放电器D1和D2的主放电电容E =放电能量Ecr =引爆临界能量E p =主放电能量（启动）放电J1、J2 =放电器D1和D2的放电电流t1、t2、t3 =压力传感器PT1、PT2和PT3处的冲击波到达时间，U =放电电压Ui
Experimental studies of single-pulse and multipulse confined detonations of liquid n-hexane spray in air initiated by successively triggered electric dischargers are presented. Similarly to a single-pulse mode, the multipulse operation mode shows the resonant dependence of the detonation initiation energy on the time delay between triggering the dischargers. There is a potential for considerable decrease in the detonation initiation energy with decreasing tube diameter and mounting of a turbulizing spiral between the dischargers. The technique is considered promising for pulse-detonation engine applications. Nomenclature C1, C2 = capacitances of the main discharge of the dischargers D1 and D2 E = discharge energy Ecr = critical energy of detonation initiation E p = energy of the primary (initiating) discharge J1, J2 = discharge currents for the dischargers D1 and D2 t1, t2, t3 = shock wave arrival times at pressure transducers PT1, PT2, and PT3, respectively U = discharge voltage Ui