【作者】 熊信； 张兴卫； 李牧；

【Author】 Xiong Xin~1,Zhang Xing-wei~1,Li Mu~1 Institute of Fluid Physics,Sichuan Mianyang,621900,China

【机构】 流体物理研究所；

【摘要】 建立了一维辐射流体力学程序模拟高功率激光烧蚀气库材料产生等离子体射流的方法,对激光烧蚀气库材料形成斜波加载的气库结构及靶形设计提供依据。激光烧蚀气库材料产生高速的高温高压等离子体射流,在空腔中传播稀疏后,形成射流前端密度较低且密度逐次增加的等离子区,作用于靶上产生压力随时间缓慢增加的斜波加载。本文对激光烧蚀单层气库材料和夹心气库材料形成等离子体射流及在空腔中稀疏过程进行了模拟,数值模拟结果与实验阴影照相数据符合较好。更多还原

【Abstract】 The process of plasma jet induced by high power laser ablation on reservoir material was simulated by one dimensional radiation hydrodynamic program.Laser ablated on reservoir material to form high speed,high pressure and high temperature plasma jet.The jet propagated through cavity,applied on target to form ramp wave loading.This article simulated on plasma jet induced by laser ablating on single reservoir and Sandwich structured reservoir forming and propagating progress.Simulation results coincident with experimental shadow photograph results.更多还原