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

Zhang, Yanzeng; Krasheninnikov, Sergei I.; Smolyakov, Andrei I.

doi:10.1002/ctpp.201900098

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

Journal Article · Sun Dec 08 00:00:00 EST 2019 · Contributions to Plasma Physics

DOI:https://doi.org/10.1002/ctpp.201900098· OSTI ID:1800217

Zhang, Yanzeng ^[1]; Krasheninnikov, Sergei I. ^[2]; Smolyakov, Andrei I. ^[3]

Univ. of California, San Diego, CA (United States). Mechanical and Aerospace Engineering Dept.; OSTI
Univ. of California, San Diego, CA (United States). Mechanical and Aerospace Engineering Dept.
Univ. of Saskatchewan, Saskatoon, SK (Canada)

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.

View Accepted Manuscript (DOE)

Research Organization:: Univ. of California, San Diego, CA (United States)

Sponsoring Organization:: USDOE; USDOE Office of Science (SC), Fusion Energy Sciences (FES)

Grant/Contract Number:: FG02-04ER54739

OSTI ID:: 1800217

Alternate ID(s):: OSTI ID: 1577419

Journal Information:: Contributions to Plasma Physics, Journal Name: Contributions to Plasma Physics Journal Issue: 5-6 Vol. 60; ISSN 0863-1042

Publisher:: WileyCopyright Statement

Country of Publication:: United States

Language:: English

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References (15)

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