Effect of energy and momentum conservation on fluid resonances for resonant magnetic perturbations in a tokamak

Journal Article · Sun Jun 15 00:00:00 EDT 2014 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4882680· OSTI ID:22304130

Leitner, Peter; Heyn, Martin F.; Kernbichler, Winfried ^[1]; Ivanov, Ivan B. ^[1]; Kasilov, Sergei V. ^[1]

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1. Fusion@ÖAW, Institut für Theoretische Physik—Computational Physics, TU Graz, Petersgasse 16, A-8010 Graz (Austria)

In this paper, the impact of momentum and energy conservation of the collision operator in the kinetic description for Resonant Magnetic Perturbations (RMPs) in a tokamak is studied. The particle conserving differential collision operator of Ornstein-Uhlenbeck type is supplemented with integral parts such that energy and momentum are conserved. The application to RMP penetration in a tokamak shows that energy conservation in the electron collision operator is important for the quantitative description of plasma shielding effects at the resonant surface. On the other hand, momentum conservation in the ion collision operator does not significantly change the results.

• OSTI ID: 22304130
• Journal Information: Physics of Plasmas, Vol. 21, Issue 6; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
DISTURBANCES
ELECTRON COLLISIONS
ENERGY CONSERVATION
PERTURBATION THEORY
PLASMA
RESONANCE
SHIELDING
SURFACES
TOKAMAK DEVICES