Up-down symmetry of the turbulent transport of toroidal angular momentum in tokamaks

Journal Article · Wed Jun 15 00:00:00 EDT 2011 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.3586332· OSTI ID:21546955

Parra, Felix I ^[1]; Barnes, Michael ^[1]; Peeters, Arthur G ^[2]

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1. Rudolf Peierls Centre for Theoretical Physics, University of Oxford, Oxford OX1 3NP (United Kingdom)
2. Isaac Newton Institute for Mathematical Sciences, Cambridge CB3 0EH (United Kingdom)

Two symmetries of the local nonlinear {delta}f gyrokinetic system of equations in tokamaks in the high flow regime are presented. The turbulent transport of toroidal angular momentum changes sign under an up-down reflection of the tokamak and a sign change of both the rotation and the rotation shear. Thus, the turbulent transport of toroidal angular momentum must vanish for up-down symmetric tokamaks in the absence of both rotation and rotation shear. This has important implications for the modeling of spontaneous rotation.

• OSTI ID: 21546955
• Journal Information: Physics of Plasmas, Vol. 18, Issue 6; Other Information: DOI: 10.1063/1.3586332; (c) 2011 American Institute of Physics; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANGULAR MOMENTUM
NONLINEAR PROBLEMS
PLASMA
ROTATION
SHEAR
SYMMETRY
TOKAMAK DEVICES
TURBULENCE
CLOSED PLASMA DEVICES
MOTION
THERMONUCLEAR DEVICES