Axisymmetric two-fluid plasma equilibria with momentum sources and sinks

Axisymmetric two-fluid plasma equilibria with momentum sources and sinks

Axisymmetric two-fluid plasma equilibria with momentum sources and sinks 150 150 UKAEA Opendata

Axisymmetric two-fluid plasma equilibria with momentum sources and sinks

Axisymmetric plasma equilibria with toroidal flow are investigated using a two-fluid analysis, taking into account the presence of momentum and current drive, together with dissipative effects. The equilibria are described by a set of three equations describing the spatial variation of poloidal magnetic flux, plasma pressure and toroidal magnetic field. These equations indicate that magnetic flux surfaces do not in general rotate as rigid bodies, as required by ideal magnetohydrodynamics (MHD) in the absence of momentum sources and poloidal flows. For specic momentum drive and damping scenarios, expressions are obtained giving the variation of density on flux surfaces and a relation between temperature and toroidal rotation rate that can in principle be tested experimentally. A simple relation between the loop voltage and plasma current in an inductive tokamak plasma with toroidal flow is also derived.

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01/01/2011