金属桥箔电爆炸及飞片驱动过程的计算

Calculations of electrically exploded metal foil and driven flyer

根据小尺寸铜桥箔电爆炸实验结果,确定了桥箔欧姆电阻模型的计算参数。采用Sesame数据库,建立了一种金属桥箔电爆炸及飞片驱动过程的计算方法。通过编制的EDF1.0程序,给出的计算结果再现了桥箔电爆炸及飞片驱动全过程,计算得到的飞片末速度与桥箔爆炸电流密度呈线性关系,与经典的电格尼模型结论一致。

The parameters of the ohm resistance model were determined from electric explosion experiments of small copper foil according to the experimental results. By referring to the Sesame EOS data base, a calculation method for process of foil electric explosion and flyer driving was established, with which EDF1.0 program was accomplished. The calculated profiles of current, voltage and flyer velocity reproduced the process of foil electric explosion and flyer driving, and the calculated linear relation between flyer velocities and exploding current densities was in accordance with the electric Gurney model.