Excitation of low-frequency dust density waves in flowing complex plasmas

被引:22
|
作者
Yaroshenko, V. V. [1 ]
Khrapak, S. A. [1 ]
Pustylnik, M. Y. [1 ]
Thomas, H. M. [1 ]
Jaiswal, S. [2 ]
Lipaev, A. M. [3 ]
Usachev, A. D. [3 ]
Petrov, O. F. [3 ]
Fortov, V. E. [3 ]
机构
[1] Deutsch Zentrum Luft & Raumfahrt DLR, Inst Mat Phys Weltraum, D-82234 Wessling, Germany
[2] Auburn Univ, Dept Phys, Auburn, AL 36849 USA
[3] Russian Acad Sci, Joint Inst High Temp, Izhorskaya St 13 Bd 2, Moscow 125412, Russia
关键词
ACOUSTIC WAVES; INSTABILITY;
D O I
10.1063/1.5097128
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
We study low frequency dust density waves excited in the microparticle streams of the Plasmakristall-4 chamber under microgravity conditions on board the International Space Station. Dispersion relations and instability conditions are analyzed for the dust density modes propagating along the axial electric field and in the reversed direction, revealing some important implications for the dust diagnostics. The results clearly point out to the Havnes parameter as a key factor for the excitation of the dust density modes.
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页数:7
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