| 均匀电荷密度下的磁绝缘理论研究 |
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| 引用本文： | 印茂伟,孙元,韦家军,张雨亭,李玉琳,廖鹏. 均匀电荷密度下的磁绝缘理论研究[J]. 核聚变与等离子体物理, 2019, 39(3): 282-288. DOI: 10.16568/j.0254-6086.201903015 |
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| 作者姓名： | 印茂伟 孙元 韦家军 张雨亭 李玉琳 廖鹏 |
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| 作者单位： | 西南科技大学国防学院,绵阳,621010;西南科技大学国防学院,绵阳,621010;西南科技大学国防学院,绵阳,621010;西南科技大学国防学院,绵阳,621010;西南科技大学国防学院,绵阳,621010;西南科技大学国防学院,绵阳,621010 |
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| 基金项目： | 国家自然科学基金(11705154)；国防基础科研项目(JCKY2017209B010，JCKY2018209B001)；四川省科技计划项目(2018GZ0196)；大学生创新训练项目(201810619023) |
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| 摘 要： | 在平行板磁绝缘传输线中均匀电荷密度下，分别对压力平衡下的修正层流模型和非压力平衡和非层流模型进行了求解，比较了两种理论模型下的结果。分析表明：相对于非层流模型而言，层流模型因未考虑径向速度，其电荷密度偏低，阳极电场、阳极磁场及阳极电流都偏大。此外，粒子模拟结果显示非层流模型具有更高的精度。最后，对压力平衡条件、均匀电荷密度下的层流以及非层流模型，从平行板理论推广到一般构型。
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| 关 键 词： | 磁绝缘 均匀电荷密度 压力平衡 非层流 |
Study of magnetic insulation with uniform charge density |
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| YIN Mao-wei,SUN Yuan,WEI Jia-jun,ZHANG Yu-ting,LI Yu-lin,LIAO Peng. Study of magnetic insulation with uniform charge density[J]. Nuclear Fusion and Plasma Physics, 2019, 39(3): 282-288. DOI: 10.16568/j.0254-6086.201903015 |
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| Authors: | YIN Mao-wei SUN Yuan WEI Jia-jun ZHANG Yu-ting LI Yu-lin LIAO Peng |
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| Affiliation: | (School of National Defense Sci & Tech, Southwest University of Sci & Tech, Mianyang 621010) |
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| Abstract: | With the uniform charge density in the magnetically insulated transmission line (MITL) of parallel plate, a laminar flow model with pressure balance and a new model without the assumption of laminar flow and pressure balance are solved analytically, respectively. The results of laminar flow model and non-laminar flow model are compared. It is shown that the charge density is smaller and electric field, magnetic field on anode is bigger in laminar flow model as without radial velocity of electrons. Then, the result of particle-in-cell simulation is compared for the two theories and shows that the accuracy of non-laminar model is higher than laminar model. Finally, the pressure balance equation and two models of laminar and non-laminar with the uniform charge density have been promoted to coaxial MITL and cone MITL. |
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| Keywords: | Magnetic insulation Uniform charge density Pressure balance Non-laminar |
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