Turbulence phase space in simple magnetized toroidal plasmas

Plasma turbulence in a simple magnetized torus (SMT) is explored for the first time with three-dimensional global fluid simulations. Three turbulence regimes are described: an ideal interchange mode regime, a previously undiscovered resistive interchange mode regime, and a drift-wave regime. As the...

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Bibliographic Details
Published in:Physical review letters 2010-04, Vol.104 (14), p.145001-145001, Article 145001
Main Authors: Ricci, Paolo, Rogers, B N
Format: Article
Language:English
Subjects:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ANNULAR SPACE
CLOSED CONFIGURATIONS
CONFIGURATION
MAGNETIC FIELD CONFIGURATIONS
MAGNETIZATION
MATHEMATICAL SPACE
PHASE SPACE
PLASMA
SIMULATION
SPACE
THREE-DIMENSIONAL CALCULATIONS
TOROIDAL CONFIGURATION
TURBULENCE
WAVE PROPAGATION
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Summary:Plasma turbulence in a simple magnetized torus (SMT) is explored for the first time with three-dimensional global fluid simulations. Three turbulence regimes are described: an ideal interchange mode regime, a previously undiscovered resistive interchange mode regime, and a drift-wave regime. As the pitch of the field lines is decreased, the simulations exhibit a transition from the first regime to the second, while the third--the drift-wave regime--is likely accessible to the experiments only at very low collisionalities.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.104.145001