Modulation of Void Motion Behavior in a Magnetized Dusty Plasma

Based on fluid equations, we show a time-dependent self-consistent nonlinear model for void formation in magnetized dusty plasmas. The cylindrical configuration is applied to better illustrate the effects of the static magnetic field, considering the azimuthal motion of the dusts. Tile nonlinear evo...

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Bibliographic Details
Published inChinese physics letters Vol. 33; no. 1; pp. 80 - 83
Main Author 谢子娟 隋郁 王一 王先杰 王阳 刘志国 李炳生 白羽 王志浩
Format Journal Article
LanguageEnglish
Published 2016
Subjects
Dust
Dusty plasmas
Evolution
Ion drag
Magnetic fields
Mathematical models
Nonlinearity
Voids
尘埃等离子体
时间依赖性
磁化
磁场强度
空穴
运动特性
速度梯度
非线性模型
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ISSN0256-307X
1741-3540
DOI10.1088/0256-307X/33/1/015201

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Summary:Based on fluid equations, we show a time-dependent self-consistent nonlinear model for void formation in magnetized dusty plasmas. The cylindrical configuration is applied to better illustrate the effects of the static magnetic field, considering the azimuthal motion of the dusts. Tile nonlinear evolution of the dust void and the rotation of the dust particles are then investigated numerically. The results show that, similar to the unmagnetized one-dimensional model, the radial ion dragplays a crucial role in the evolution of the void. Moreover, the dust rotation is driven by the azimuthal ion drag force exerting on the dust. As the azimuthal component of ion velocity increases linearly with the strength of the magnetic field, tile azimuthal component of dust velocity increases synchronously. Moreover, the angular velocity gradients of the dust rotation show a sheared dust flow around the void.
Bibliography:Zi-Juan Xie, Yu Sui, Yi Wang, Xian-Jie Wang , Yang Wang, Zhi-Guo Liu, Bing-Sheng Li, Yu Bai, Zhi-Hao Wang（ 1Department of Physics, Harbin Institute of Technology, Harbin 150001 ;2Natural Science Research Center, Academy of Fundamental and Interdisciplinary Sciences, Harbin Institute of Technology, Harbin 150080 ;3Division of Space Material and Structure Protection, Beijing Institute of Spacecraft Environment Engineering Beijing 100094）
11-1959/O4
Based on fluid equations, we show a time-dependent self-consistent nonlinear model for void formation in magnetized dusty plasmas. The cylindrical configuration is applied to better illustrate the effects of the static magnetic field, considering the azimuthal motion of the dusts. Tile nonlinear evolution of the dust void and the rotation of the dust particles are then investigated numerically. The results show that, similar to the unmagnetized one-dimensional model, the radial ion dragplays a crucial role in the evolution of the void. Moreover, the dust rotation is driven by the azimuthal ion drag force exerting on the dust. As the azimuthal component of ion velocity increases linearly with the strength of the magnetic field, tile azimuthal component of dust velocity increases synchronously. Moreover, the angular velocity gradients of the dust rotation show a sheared dust flow around the void.
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ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/33/1/015201