A nonlinear theory of dust voids in cylindrical geometry with the convective effect

A time-dependent, self-consistent nonlinear model with the convective term for the void formation in dusty plasmas is given. Furthermore, the cylindrical configuration is applied instead of the Cartesian system, considering the device geometry in experiments. The nonlinear evolution of the dust void...

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Bibliographic Details
Published in:Physics of plasmas 2006-06, Vol.13 (6)
Main Authors: Liu, Yue, Mao, Songtao, Wang, Zheng-Xiong, Wang, Xiaogang
Format: Article
Language:English
Subjects:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
CARTESIAN COORDINATES
CONVECTION
CYLINDRICAL CONFIGURATION
DUSTS
GEOMETRY
IONS
NONLINEAR PROBLEMS
NUMERICAL ANALYSIS
PLASMA
RADIATION TRANSPORT
VOIDS
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Summary:A time-dependent, self-consistent nonlinear model with the convective term for the void formation in dusty plasmas is given. Furthermore, the cylindrical configuration is applied instead of the Cartesian system, considering the device geometry in experiments. The nonlinear evolution of the dust void is then investigated numerically. It is shown that, similar to the slab model, the ion drag plays a crucial role in the evolution of the void. However, the effect of the convective term slows down the void formation process and the void size obtained in the cylindrical coordinate is larger than that obtained in the Cartesian coordinates.
ISSN:1070-664X
1089-7674
DOI:10.1063/1.2209929