激光驱动冲击波传播稳定性的计算分析  

Calculation on laser driven shock wave stability of propagation

作　　者：舒桦[1] 傅思祖[1] 马民勋[1] 黄秀光[1] 顾援[1] 罗平庆[2] 龙滔[2] 

机构地区：[1]中国工程物理研究院上海激光等离子体研究所高功率激光物理联合实验室,上海201800 [2]北京应用物理与计算数学研究所,北京100088

出　　处：《强激光与粒子束》2007年第2期253-256,共4页High Power Laser and Particle Beams

基　　金：国家863计划项目资助课题

摘　　要：采用简化材料状态方程,用1维特征线方法计算了激光驱动冲击波在多层材料中稳定传播的距离。计算结果与用1维三温激光-靶耦合JB程序的数值模拟结果进行了比较,二者符合得比较好。通过计算发现:冲击波在Au中的稳定传播距离受基底厚度的影响很大,稳定传播距离随基底厚度的增加先增大后减小。Laser driven shock wave stability of propagation in impedance match target was studied using one dimension characteristic line method. In addition, one dimension three temperature laser-target coupling JB program was used to simulate it. It was compared with simplified equation of state. The results of the two methods agree well. The calculation results show that shock wave stability of propagation in Au depends closely on the thickness of the Al base.

关 键 词：冲击波 状态方程 特征线 阻抗匹配 JB程序 

分 类 号：O347.5[理学—固体力学]