| MFCG 2维磁流体力学程序中磁场计算的改进 |
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| 引用本文： | 赵强,董志伟,杨显俊,徐福恺,王贵荣. MFCG 2维磁流体力学程序中磁场计算的改进[J]. 强激光与粒子束, 2007, 19(7): 1192-1196 |
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| 作者姓名： | 赵强 董志伟 杨显俊 徐福恺 王贵荣 |
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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;北京应用物理与计算数学研究所,北京,100088;北京应用物理与计算数学研究所,北京,100088;北京应用物理与计算数学研究所,北京,100088;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： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 定子线圈中的电流在空间中产生的磁场是金属导体（套筒）膨胀压缩的主要对象，该磁场直接影响爆磁压缩发生器输出电流脉冲的大小。给出了面电流分布下2维磁场的计算公式，较点电流分布下的磁场公式更能细致准确地反映出磁场的变化。数值结果表明:面电流分布下的磁场公式不仅能准确地描述磁场的变化，而且计算效率大大提高，节约了计算时间。
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| 关 键 词： | 爆磁压缩发生器 磁流体力学 面电流 点电流 定子线圈 |
| 文章编号： | 1001-4322（2007）07-1192-05 |
| 收稿时间： | 2006-09-22 |
| 修稿时间： | 2006-09-22 |
Improved formulas of magnetic field computation in two-dimensional MFCG magnetohydrodynamics code |
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| ZHAO Qiang,DONG Zhi-wei,YANG Xian-jun,XU Fu-kai,WANG Gui-rong. Improved formulas of magnetic field computation in two-dimensional MFCG magnetohydrodynamics code[J]. High Power Laser and Particle Beams, 2007, 19(7): 1192-1196 |
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| Authors: | ZHAO Qiang DONG Zhi-wei YANG Xian-jun XU Fu-kai WANG Gui-rong |
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| Affiliation: | Institute of Applied Physics and Computational Mathematics, P.O.Box 8009-11, Beijing 100088, China |
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| Abstract: | In an MFCG,the magnetic field generated by the current of stator coils is compressed by the expanding armature.It is important to compute the value of the magnetic field exactly,for it is relevant to the output current of MFCG.Formulas of magnetic field with surface current density and that with point current density are presented.Numerical results prove that the former can describe the magnetic field more accurately than the latter,and the former is more efficient than the latter. |
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| Keywords: | MFCG Magnetic fluid mechanics Surface current density Point current density Stator coils |
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