TITLE

Theory of void formation in dusty plasmas

AUTHOR(S)
Zuquan Hu; Yinhua Chen; Xiang Zheng; Feng Huang; Gei-fen Shi; Yu, M. Y.
PUB. DATE
June 2009
SOURCE
Physics of Plasmas;Jun2009, Vol. 16 Issue 6, p063707
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A fluid theory of void formation in dusty plasmas taking into account ionization is proposed. It is shown that if the ionization rate is larger than a threshold, an initial steady-state dust-density distribution can evolve into a stable distribution containing a void. As the ionization rate is further increased, the time required for void formation decreases. The void size first increases, but then decreases. However, for still larger ionization rates, the dusty region of the plasma becomes ringlike, including the convection term in dust momentum equation. The results are in agreement with existing experiments and theories.
ACCESSION #
42961099

 

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