首页 | 本学科首页   官方微博 | 高级检索  
     检索      

双层钨丝阵的Z箍缩动力学过程研究
引用本文:宁成,丁宁,刘全,杨震华.双层钨丝阵的Z箍缩动力学过程研究[J].物理学报,2006,55(7):3488-3493.
作者姓名:宁成  丁宁  刘全  杨震华
作者单位:北京应用物理与计算数学研究所,北京 100088
摘    要:基于Z箍缩零维模型、丝阵碰撞假设和箍缩动能最大化的优化原则,对美国Sandia实验室Z装置的典型双层钨丝阵负载进行了优化分析,结果表明它基本上是优化的.在丝阵碰撞假设下,利用一维三温辐射磁流体力学程序对其箍缩过程进行了数值模拟,模拟结果再现了Z箍缩过程的一维时空演化过程,得到了内外层丝阵的运动轨迹和驱动电流在它们之间的转移规律,并将计算得到的宏观结果与实验结果进行了比较.表明丝阵相互作用的碰撞假设有合理性. 关键词: Z箍缩 双层钨丝阵 零维模型 一维辐射磁流体

关 键 词:Z箍缩  双层钨丝阵  零维模型  一维辐射磁流体
文章编号:1000-3290/2006/55(07)/3488-06
收稿时间:10 8 2005 12:00AM
修稿时间:2005-10-082005-11-16

Studies of implosion processes of nested tungsten wire-array Z-pinch
Ning Cheng,Ding Ning,Liu Quan,Yang Zhen-Hua.Studies of implosion processes of nested tungsten wire-array Z-pinch[J].Acta Physica Sinica,2006,55(7):3488-3493.
Authors:Ning Cheng  Ding Ning  Liu Quan  Yang Zhen-Hua
Institution:Institute of Applied Physics and Computational Mathematics, Beijing 100088, China
Abstract:Nested wire-array is a kind of promising structured-load because it can improve the quality of Z-pinch plasma and enhance the radiation power of X-ray source. Based on the zero-dimensional model, the assumption of wire-array collision, and the criterion of optimized load (maximal load kinetic energy), optimization of the typical nested wire-array as a load of Z machine at Sandia Laboratory was carried out. It was shown that the load has been basically optimized. The Z-pinch process of the typical load was numerically studied by means of one-dimensional three-temperature radiation magneto-hydrodynamics (RMHD) code. The obtained results reproduce the dynamic process of the Z-pinch and show the implosion trajectory of nested wire-array and the transfer process of drive current between the inner and outer array. The experimental and computational X-ray pulse was compared, and it was suggested that the assumption of wire-array collision was reasonable in nested wire-array Z-pinch at least for the current level of Z machine.
Keywords:Z-pinch  nested tungsten-wire-array  0-D optimizing  1-D RMHD
本文献已被 CNKI 维普 万方数据 等数据库收录!
点击此处可从《物理学报》浏览原始摘要信息
点击此处可从《物理学报》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号