Influence of flow shear on localized Rayleigh–Taylor and resistive drift wave instabilities | Zendy

Zhang Yanzeng | Zendy; Krasheninnikov Sergei I. | Zendy; Smolyakov Andrei I. | Zendy

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Influence of flow shear on localized Rayleigh–Taylor and resistive drift wave instabilities

Author(s) -

Zhang Yanzeng,

Krasheninnikov Sergei I.,

Smolyakov Andrei I.

Publication year - 2019

Publication title -

contributions to plasma physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.531

H-Index - 47

eISSN - 1521-3986

pISSN - 0863-1042

DOI - 10.1002/ctpp.201900098

Subject(s) - resistive touchscreen , physics , equipotential , instability , mechanics , rayleigh–taylor instability , eddy , shear (geology) , shear flow , slab , rayleigh scattering , optics , turbulence , materials science , geophysics , quantum mechanics , electrical engineering , engineering , composite material

The impact of velocity shear on the localized solutions of Rayleigh–Taylor (RT) and resistive drift wave (DW) instabilities has been investigated. Slab geometry is used, and the plasma density gradient is assumed to have a finite spatial structure. It demonstrates that the velocity shear has quite different effects on these instabilities: while it stabilizes RT instability and causes tilting of the eddies of equipotential contour, it has a very mild impact on the resistive DW instability and simply shifts the eddies with no tilting.

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