| 螺线型爆磁压缩发生器的初始瞬态磁场分布 |
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| 引用本文： | 杨显俊,董志伟,赵强.螺线型爆磁压缩发生器的初始瞬态磁场分布[J].计算物理,2006,23(2):127-132. |
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| 作者姓名： | 杨显俊 董志伟 赵强 |
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| 作者单位： | 北京应用物理与计算数学研究所,北京,100088 |
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| 基金项目： | 中国科学院资助项目;中国物理研究院科研项目 |
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| 摘 要： | 研究了螺线管型爆磁压缩发生器中金属套筒的一维磁扩散模型，分别导出了不同边界条件下的近似解析表达式，分析了瞬态磁场分布的特点，指出了经典趋肤深度计算公式的高频局限性，得出了能够同时反映高频与低频特性的磁场分布与相应趋肤深度的近似解析结果．
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| 关 键 词： | 螺线管型爆磁压缩发生器 瞬态磁场分布 趋肤深度 |
| 文章编号： | 1001-246X（2006）02-0127-06 |
| 收稿时间： | 2005-02-18 |
| 修稿时间： | 2005-06-02 |
Initial Transient Magnetic Field Distribution in an MFCG |
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| YANG Xian-jun,DONG Zhi-wei,ZHAO Qiang.Initial Transient Magnetic Field Distribution in an MFCG[J].Chinese Journal of Computational Physics,2006,23(2):127-132. |
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| Authors: | YANG Xian-jun DONG Zhi-wei ZHAO Qiang |
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| Institution: | Institute of Applied Physics and Computational Mathematics, Beijing 100088, China |
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| Abstract: | An analytical scheme for the initial transient process in a simple helical flux compression generator, which includes distribution of the magnetic field in the hollow of the armature and current density in the helical stator, is derived with diffusion equations. The relationship among frequency of conducting current,roots of the characteristic Bessel equation and decay time in the armature is discussed. The skin depth in the helical stator is calculated and is compared with an approximation wMely used in the magnetic diffusion process. Our analytical result is helpful to understand mechanism of the loss of magnetic flux in both armature and stator and makes significant suggestions to optimal designing performance of the helical flux compression generator. |
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| Keywords: | MFCG transient distribution of magnetic field skin depth |
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