Nonlinear drift chains associated with sheared flow of magnetized plasma with magnetic shear
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Equations describing nonlinear drift waves in a strongly inhomogeneous plasma, with a sheared flow profile perpendicular to the sheared magnetic field, are derived. In such configurations, the diamagnetic drift velocity is a spatially dependent function, and in the linear domain, the magnetic shear stabilisation criteria are substantially changed. In the nonlinear regime, possible analytical and numerical vortex chain solutions, periodic along the plasma flow and localised in the perpendicular direction, are found.
KeywordsNonlinear Regime Equipotential Line Tokamak Plasma Drift Wave Magnetic Shear
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