Modern gyrokinetic formulation of collisional and turbulent transport in toroidally rotating plasmas

Springer Science and Business Media LLC - Tập 1 Số 1 - 2017
H. Sugama1,2
1Department of Fusion Science, SOKENDAI (The Graduate University for Advanced Studies), Toki, Japan
2National Institute for Fusion Science, National Institutes of Natural Sciences, Toki, Japan

Tóm tắt

Abstract Collisional and turbulent transport processes in toroidal plasmas with large toroidal flows on the order of the ion thermal velocity are formulated based on the modern gyrokinetic theory. Governing equations for background and turbulent electromagnetic fields and gyrocenter distribution functions are derived from the Lagrangian variational principle with effects of collisions and external sources taken into account. Noether’s theorem modified for collisional systems and the collision operator given in terms of Poisson brackets are applied to derivation of the particle, energy, and toroidal momentum balance equations in the conservative forms which are desirable properties for long-time global transport simulation. The resultant balance equations are shown to include the classical, neoclassical, and turbulent transport fluxes which agree with those obtained from the conventional recursive formulations.

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