Shear instability in magnetised collisional dusty plasmas

B. P. Pandey, S. V. Vladimirov, A. Samarian

Research output: Chapter in Book/Report/Conference proceedingOther chapter contribution

Abstract

The relative motion of the lighter, magnetised plasma component against charged dust is at the heart of Hall electric field in dusty plasmas. The presence of charged dust causes very low frequency waves in both unmagnetised as well as magnetised medium. However, collisional process in dusty medium strongly influences the diffusion of magnetic field. Therefore, it should be anticipated that plasma--dust collision, by unfreezing the magnetic flux from the dusty fluid, may open new channels through which free shear energy (if it is available in the plasma) can flow to waves. We shall show that the non-thermal character of the plasma particles which manifests itself as Hall diffusion of the magnetic field facilitates the shear flow driven instability. It is important to distinguish it from well know shear driven Kelvin-Helmholtz instability. Unlike KHI where transverse magnetic field quenches the growth rate, this new, Hall effect driven shear instability is solely due to the transverse relative drift of the plasma particles against charged dust and disappears in the absence of magnetic field.
Original languageEnglish
Title of host publicationICOPS 2012
Subtitle of host publication2012 Abstracts IEEE International Conference on Plasma Science
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages2P-31
Number of pages1
ISBN (Print)9781457721298
DOIs
Publication statusPublished - 2012
EventIEEE International Conference on Plasma Science (39th : 2012) - Edinburgh, Scotland
Duration: 8 Jul 201212 Jul 2012

Conference

ConferenceIEEE International Conference on Plasma Science (39th : 2012)
CityEdinburgh, Scotland
Period8/07/1212/07/12

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  • Cite this

    Pandey, B. P., Vladimirov, S. V., & Samarian, A. (2012). Shear instability in magnetised collisional dusty plasmas. In ICOPS 2012: 2012 Abstracts IEEE International Conference on Plasma Science (pp. 2P-31). Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/PLASMA.2012.6383587