The collision effect between dust grains and ions to the dust ion acoustic waves in a dusty plasma

被引：16
|
作者：
Yang, Xue [1 ,2 ,3 ]
Wang, Cang-Long [1 ,2 ,3 ]
Liu, Cong-Bo [1 ,2 ,3 ]
Zhang, Jian-Rong [1 ,2 ,3 ]
Shi, Yu-Ren [1 ,2 ,3 ]
Duan, Wen-Shan [1 ,2 ,3 ]
Yang, Lei [1 ,2 ,3 ,4 ]
机构：
[1] NW Normal Univ, Coll Phys & Elect Engn, Lanzhou 730070, Peoples R China
[2] NW Normal Univ, Joint Lab Atom & Mol Phys NWNU & IMP CAS, Lanzhou 730070, Peoples R China
[3] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
[4] Lanzhou Univ, Dept Phys, Lanzhou 730000, Peoples R China
来源：
PHYSICS OF PLASMAS | 2012年 / 19卷 / 10期
基金：
中国国家自然科学基金;
关键词：
SOLITARY WAVES; SHOCK-WAVES; CHARGED DUST; PROPAGATION; ADIABATICITY;
D O I：
10.1063/1.4757637
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
Damping solitary wave in dusty plasma is studied by considering the collision effect between dust grains and ions. It can be described by a KdV type equation in which a damping term of phi(2) exist. It is found that both the amplitude and propagation velocity of the solitary wave decrease with time exponentially. Our results are compared with another KdV type equation with the damping term of phi. It is noted that the damping rate of the KdV type equation with the damping term of phi(2) is larger than that with the term of phi. It is found that the damping rate is proportional to the collision frequency between dust grains and ions. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4757637]
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页数：4
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