| 激光线聚焦驱动平面银靶的二维数值模拟 |
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| 引用本文： | 郑无敌,张国平.激光线聚焦驱动平面银靶的二维数值模拟[J].计算物理,2008,25(1):36-42. |
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| 作者姓名： | 郑无敌 张国平 |
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| 作者单位： | 1. 北京应用物理与计算数学研究所, 北京 100088;2. 中国工程物理研究院研究生部, 北京 100088 |
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| 基金项目： | 国家高技术863计划资助项目 |
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| 摘 要： | 介绍新研制的二维非平衡辐射流体力学程序XRL2D的物理方程以及计算方法,并对神光Ⅱ上典型的类镍银X光激光实验条件,用3种ALE计算方法模拟了预主脉冲线聚焦驱动银平面靶的流体运动.几种方法模拟给出的物理图像清晰且相似,类镍离子丰度分布呈弯月形,同实验上XRL场图呈弯月形分布一致.对3种计算方法给出的结果进行了细致的比较分析.
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| 关 键 词： | 数值模拟 ALE方法 预主脉冲激光打靶 X光激光线聚焦等离子体 |
| 文章编号： | 1001-246X（2008）01-0036-07 |
| 收稿时间： | 2006-10-23 |
| 修稿时间： | 2007-03-02 |
2D Simulation of an Ag Planar Target Driven by Focus-line Laser |
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| ZHENG Wudi,ZHANG Guoping.2D Simulation of an Ag Planar Target Driven by Focus-line Laser[J].Chinese Journal of Computational Physics,2008,25(1):36-42. |
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| Authors: | ZHENG Wudi ZHANG Guoping |
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| Institution: | 1. Institute of Applied Physics and Computational Mathematics, Beijing 100088, China;2. Graduated School of China Academy of Engineering Physics, Beijing 100088, China |
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| Abstract: | Physical equations and calculation methods of XRL2D code, a 2D non-equilibrium radiation hydrodynamics code, are introduced. With this code, three different ALE methods are adopted to simulate hydrodynamic behavior of focus-line plasma of an Ag planar target driven by pre-main-pulse laser, which is a typical Ni-like Ag-ray laser experiment on ShenguangⅡ. The methods give similar and clear physical pictures:abundance distribution of Ni-like ion shows a shape of bow which agrees with distribution of XRL intensity in experiment. The methods are compared in detail as well. |
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| Keywords: | numerical simulation ALE method laser-target coupling of pre-main pulses focus-line plasma of X-Ray laser |
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