激光直接驱动飞片空腔靶的数值模拟

Numerical Simulation of Double Foils with Laser Directly Driving

数值模拟了激光直接驱动铝飞片空腔靶模型。描述了激光直接驱动下 ,飞片的飞行状态和靶中冲击波的传播特性的物理图像 ;分析了不同参数对飞片状态和靶中冲击波特性的影响程度。模拟结果分析表明 ,如果靶结构参数与激光条件匹配 ,采用适当厚度的三台阶靶 ,可能实现状态方程的绝对测量。

The numerical simulation of the model of double aluminum foils driven by high power laser beams was presented. The state of flyer and the character of shock wave of target are depicted, and the effects of several parameters on the state of flyer and the character of shock wave of target were analyzed. The analyses of the simulated results show that with a good matching between the target and laser and a proper choice of the thickness of three-step target, the absolute measurement of equation of state may be approached.