Influence of flow shear on localized Rayleigh–Taylor and resistive drift wave instabilities |
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| Authors: | Yanzeng Zhang Sergei I Krasheninnikov Andrei I Smolyakov |
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| Institution: | 1. Mechanical and Aerospace Engineering Department, University of California San Diego, San Diego, California, USA;2. University of Saskatchewan, Saskatoon, Canada |
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| Abstract: | 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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| Keywords: | localized solution Rayleigh–Taylor instability resistive drift wave instability velocity shear |
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