Design and characteristic of corona discharge unit in shock tube based on finite element analysis

被引：0
作者：
Equipment Academy, State Key Laboratory of Laser Propulsion and Application, Beijing [1 ]
101416, China
机构：
[1] Equipment Academy, State Key Laboratory of Laser Propulsion and Application, Beijing
来源：
Tuijin Jishu | / 11卷 / 1748-1753期
关键词：
Corona discharge; Discharge unit; Finite element; Shock tube;
D O I：
10.13675/j.cnki.tjjs.2015.11.021
中图分类号：
学科分类号：
摘要：
In order to study the effect of ignition delay of hydrocarbon fuel acted by plasma, the discharge at the end of the shock tube in coaxial discharge was simulated based on finite element analysis. The electrical parameters in the discharge process were calculated. The electrode with tips would produce higher electric field intensity locally compared with the cylinder electrode. 100 kV voltage applied on 1cm diameter electrode in 10cm inner diameter cylinder would produce 176 kV/cm maximum electric field intensity. The electrode with tip at top would produce 435 kV/cm maximum electric field intensity and the electrode with tip at side would produce 250 kV/cm maximum electric field intensity. The discharge unit of the shock tube was designed based on the simulation results and the corona discharge experiment was carried out. The voltage range of corona discharge and arc discharge in metal cylinder of different diameter was studied. The power range is 3~16.7W for the 40 mm inner diameter cylinder and 1.6~50.5 W for the 100 mm inner diameter cylinder when corona discharge was taking place. © 2015, Journal of Propulsion Technology. All right reserved.
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页码：1748 / 1753
页数：5
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