| 柱位形等离子体中气球模的相干结构 |
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| 引用本文： | 陈银华,朱栋培.柱位形等离子体中气球模的相干结构[J].中国科学技术大学学报,1992,22(3):277-282. |
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| 作者姓名： | 陈银华 朱栋培 |
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| 作者单位： | 中国科学技术大学近代物理系
(陈银华)，中国科学技术大学近代物理系(朱栋培) |
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| 基金项目： | 中国科学院LWTZ—1298资助项目 |
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| 摘 要： | 本文研究等离子体柱中非线性气球模。导出了描述柱位形下等离子体中气球模的非线性方程组,并求出该方程组的局域涡旋解。这类新解由柱对称和反对称两部分组成,称为气球柱涡旋。当涡旋中心离柱轴距离远小于涡旋半径时,它退化为单涡旋;而在相反的情况下,它又退化为通常的偶极涡旋。涡旋角速度允许区强烈地依赖于磁场力线的曲率。
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| 关 键 词： | 柱位形等离子体 涡旋 气球模 |
COHERENT CONSTRUCTURE OF THE BALLOONING MODE IN PLASMA CYLINDER |
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| Chen Yinhua Zhu Dongpei.COHERENT CONSTRUCTURE OF THE BALLOONING MODE IN PLASMA CYLINDER[J].Journal of University of Science and Technology of China,1992,22(3):277-282. |
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| Authors: | Chen Yinhua Zhu Dongpei |
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| Institution: | Department of Modern Physics |
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| Abstract: | The nonlinear ballooning mode in plasma cylinder is investigated in this paper. The nonlinear system of equations governing the dynamics of the ballooning mode is derived, and the local vortex solution of this equation system is found. This new type of solution, called the ballooning cylindrical vortex, consists of both axisymmetrical and antisymmetrieal parts. When the distance from the centre of vortex to the cylindrical axis is much shorter than the vortex radius, this solution reduces to a monopie, and in the opposite ease it becomes the usual dipole vertex. The allowed region of the angular velocity of vortex depends strongly on the curvature of magnetic field lines. |
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| Keywords: | cylindrical plasma vortex ballooning mode |
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