| Z箍缩丝阵动态烧蚀的二维数值模拟 |
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| 引用本文： | 段书超,章征伟,李晶,但加坤,周少彤,张思群,蔡红春,任晓东,黄显宾.Z箍缩丝阵动态烧蚀的二维数值模拟[J].强激光与粒子束,2014,26(4):045050-314. |
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| 作者姓名： | 段书超 章征伟 李晶 但加坤 周少彤 张思群 蔡红春 任晓东 黄显宾 |
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| 作者单位： | 1.中国工程物理研究院 流体物理研究所, 脉冲功率科学与技术重点实验室, 四川 绵阳 621 999; |
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| 基金项目： | 流体物理研究所发展基金项目(SFZ20110402) |
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| 摘 要： | 采用FOI-PERFECT程序对局域欧姆加热主导的动态烧蚀进行了数值模拟研究,定量诊断并比较了烧蚀率、先驱电流和烧蚀时间,考查烧蚀阶段之初的丝等离子体的直径和丝阵的丝数对烧蚀的影响,结果表明,在等离子体流建立后,随丝数或者丝径的增加,烧蚀率增大,先驱电流减少,烧蚀时间减小。
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| 关 键 词： | Z箍缩 烧蚀 磁流体力学 数值模拟 |
| 收稿时间： | 2013/9/4 |
Two-dimensional numerical investigation of the dynamic ablation of Z-pinch wire-array |
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| Affiliation: | 1.Key Laboratory of Pulsed Power,Institute of Fluid Physics,CAEP,P.O.Box 919-108,Mianyang 621999,China;2.Department of Modern Physics,University of Science and Technology of China,Hefei 230026,China |
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| Abstract: | The local ohmic heating dominated dynamic ablation of Z-pinch wire-array is investigated numerically in 2D geometry using FOI-PERFECT code. Mass ablation rate, precursor current and ablation time are analyzed quantitatively to investigate the effects of initial wire plasma diameter and wire number on the ablation of wire-array. Numerical results demonstrate that the increase of wire number and/or initial wire plasma diameter leads to the increase of mass ablation rate and the decrease of precursor current and ablation time. This conclusion agrees with the simulation works of other authors. |
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| Keywords: | Z-pinch ablation magnetohydrodynamics numerical modeling |
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