Journal article
Ionization instabilities and resonant acoustic modes
Physics of plasmas, Vol.8(11), pp.5018-5024
11/2001
DOI: 10.1063/1.1398283
Abstract
A linear stability analysis of ion-acoustic and dust-acoustic waves is carried out using a multifluid model in the presence of ionization, ion drag, and collisions of ions and dust with the background neutral gas. It is found that an unstable dust-acoustic mode of nonzero real frequency can be generated via a resonance phenomenon. This resonance develops as the frequency of the dust-ion-acoustic mode is reduced sufficiently in the long-wavelength regime that it couples strongly to the dust-acoustic mode. As the charge on dust particles exceeds a threshold, multiple low-frequency modes with large growth rates are excited suddenly. Predictions of the theory are compared with experimental results [D. Samsonov and J. Goree, Phys. Rev. E 59, 1047 (1999)].
Details
- Title: Subtitle
- Ionization instabilities and resonant acoustic modes
- Creators
- Xiaogang Wang - Dalian University of TechnologyA Bhattacharjee - University of IowaS. K Gou - University of IowaJ Goree - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Physics of plasmas, Vol.8(11), pp.5018-5024
- DOI
- 10.1063/1.1398283
- ISSN
- 1070-664X
- eISSN
- 1089-7674
- Number of pages
- 7
- Language
- English
- Date published
- 11/2001
- Academic Unit
- Physics and Astronomy; Mechanical Engineering
- Record Identifier
- 9984199696202771
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