期刊
ASTROPHYSICS AND SPACE SCIENCE
卷 349, 期 2, 页码 829-834出版社
SPRINGER
DOI: 10.1007/s10509-013-1696-7
关键词
Counter-rotating vortices; Shear flow; Dusty plasmas
资金
- Quaid-i-Azam University Research Fund (URF) Project
The coupling of Shukla-Varma (SV) and convective cell modes is discussed in the presence of non-Boltzmannian electron response and parallel equilibrium shear flow. In the linear case, a new dispersion relation is derived and analyzed. It is found that the coupled SV and convective cell modes destabilize in the presence of electron shear flow. On the other hand, in the nonlinear regime, it is shown that Shukla-Varma mode driven counter rotating vortices can be formed for the system under consideration. It is found that these vortices move slowly by comparison with the ion acoustic or electron drift-wave driven counter rotating vortices. The relevance of the present investigation with regard to space plasmas is also pointed out.
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