Gyrokinetic simulations of neoclassical transport using a minimal collision operator

Journal Article · Sat Nov 01 00:00:00 EDT 2008 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3033731· OSTI ID:21251764

Dif-Pradalier, G; Grandgirard, V; Sarazin, Y; Garbet, X; Ghendrih, Ph; Angelino, P ^[1]

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1. Association Euratom-CEA, CEA/IRFM, CEA-Cadarache, F-13108 St. Paul-lez-Durance cedex (France)

Conventional neoclassical predictions are successfully recovered within a gyrokinetic framework using a minimal Fokker-Planck collision operator. This operator is shown to accurately describe some essential features of neoclassical theory, namely the neoclassical transport, the poloidal rotation and the linear damping of axisymmetric flows while interestingly preserving a high numerical efficiency. Its form makes it especially adapted to Eulerian or Semi-Lagrangian schemes.

• OSTI ID: 21251764
• Journal Information: AIP Conference Proceedings, Vol. 1069, Issue 1; Conference: Joint Varenna-Lausanne international workshop on theory of fusion plasmas, Varenna (Italy), 25-29 Aug 2008; Other Information: DOI: 10.1063/1.3033731; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
AXIAL SYMMETRY
FOKKER-PLANCK EQUATION
LAGRANGIAN FUNCTION
MAGNETOHYDRODYNAMICS
NEOCLASSICAL TRANSPORT THEORY
SIMULATION