强激光与粒子束, 2017, 29 (2): 025004, 网络出版: 2017-02-10  

圆盘型发生器驱动固体套筒内爆的数值模拟

Numerical simulation of implosion of solid liner driven by disk explosive magnetic generator
作者单位
中国工程物理研究院 流体物理研究所, 四川 绵阳 621900
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400 mm的十单元圆盘型发生器为驱动源,采用长度72 cm、厚度120 μm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230 kV的高电压和31 MA、特征上升时间1.6 μs的脉冲大电流,能够把50 g柱形铝套筒加速到13.7 km/s。
Abstract
Based on the simplified model of electrically exploded opening switch(EEOS) and the zero-dimension model of solid liner, the code D-liner, which was designed to simulate implosion of solid liner driven by disk explosive magnetic generator(DEMG) with EEOS, was compiled with Matlab. To optimize the parameters of solid liner and analyze the variation of parameters, such as the voltage of EEOS, radius and velocity of liner and the effect of EEOS on DEMG current, the system with DEMG, EEOS and solid liner was simulated. The simulation results show that when the initial current is 5.9 MA, the 400 mm ten-element DEMG with EEOS, whose length is 72 cm and thickness is 120 μm, can output 31 MA current on 50 g cylindrical aluminum liner with a characteristic rise time of 1.6 μs, that the EEOS can transfer high voltage (230 kV) to the liner and that the 50 g cylindrical aluminum liner can be driven to 13.7 km/s.

杜枢, 孙奇志, 刘伟. 圆盘型发生器驱动固体套筒内爆的数值模拟[J]. 强激光与粒子束, 2017, 29(2): 025004. Du Shu, Sun Qizhi, Liu Wei. Numerical simulation of implosion of solid liner driven by disk explosive magnetic generator[J]. High Power Laser and Particle Beams, 2017, 29(2): 025004.

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!