圆盘型发生器驱动固体套筒内爆的数值模拟

发布时间：2018-07-11 17:14

本文选题：圆盘型发生器 + 固体套筒　；参考：《强激光与粒子束》2017年02期

【摘要】：根据电爆炸箔断路开关的简化数值模型和不可压缩固体套筒的零维模型,利用Matlab编写了用于模拟圆盘型发生器驱动固体套筒内爆的一体化程序D-Liner,对圆盘型发生器、电爆炸箔断路开关、固体套筒内爆的耦合过程进行了数值模拟,分析了电爆炸断路开关工作电压、套筒半径、套筒速度的变化过程以及电爆炸断路开关对发生器电流波形的影响,并对套筒参数进行了优化设计。计算结果表明,以直径400mm的十单元圆盘型发生器为驱动源,采用长度72cm、厚度120μm的铜箔作为脉冲锐化开关,当初始电流为5.9 MA时,圆盘型发生器能够获得35 MA的脉冲大电流,电爆炸箔断路开关在击穿与之并联的间隙开关之后可以在固体套筒上产生230kV的高电压和31MA、特征上升时间1.6μs的脉冲大电流,能够把50g柱形铝套筒加速到13.7km/s。
[Abstract]:According to the simplified numerical model of electric exploding foil open circuit switch and the zero dimension model of incompressible solid sleeve, the integrated program D-Liner, which is used to simulate the solid sleeve implosion driven by disk generator, is compiled by Matlab. The coupling process of electric explosion foil breaker and solid sleeve implosion is numerically simulated. The working voltage and sleeve radius of the electric explosion open circuit switch are analyzed. The changing process of sleeve velocity and the influence of electrical explosion breaker on the current waveform of the generator are discussed, and the parameters of the sleeve are optimized. The calculation results show that the 10-unit disk generator with diameter 400mm as the driving source, copper foil with a length of 72 cm and a thickness of 120 渭 m is used as the pulse sharpening switch. When the initial current is 5.9 MA, the disk generator can obtain the high pulse current of 35 Ma. The high voltage of 230 kV and 31 Ma can be generated on the solid sleeve after the electric explosion foil break switch breaks the gap switch with it in parallel. The characteristic rise time is 1.6 渭 s pulse high current, and the 50 g cylindrical aluminum sleeve can be accelerated to 13.7 km / s.
【作者单位】：中国工程物理研究院流体物理研究所;
【分类号】：TN78

【参考文献】