Interpretation of edge pedestal rotation measurements in DIII-D

Journal Article · Tue Jan 15 04:00:00 EST 2008 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.2830653· OSTI ID:21069964

Stacey, W M ^[1]; Groebner, R J ^[2]

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1. Georgia Institute of Technology, Atlanta, Georgia 30332 (United States)
2. General Atomics, San Diego, California 92186 (United States)

A novel methodology for inferring experimental toroidal angular momentum transfer rates from measured toroidal rotation velocities and other measured quantities has been developed and applied to analyze rotation measurements in the DIII-D [J. Luxon, Nucl. Fusion 42, 6149 (2002)] edge pedestal. The experimentally inferred values have been compared with predictions based on atomic physics processes and on neoclassical toroidal viscosity. The poloidal rotation velocities have been calculated from poloidal momentum balance using neoclassical parallel viscosity and a novel retention of all terms in the poloidal momentum balance, and compared with measured values in the DIII-D edge pedestal.

• OSTI ID: 21069964
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 1 Vol. 15; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ANGULAR MOMENTUM TRANSFER
BOUNDARY LAYERS
CHARGED-PARTICLE TRANSPORT
DOUBLET-3 DEVICE
NEOCLASSICAL TRANSPORT THEORY
PLASMA
PLASMA CONFINEMENT
ROTATION
VISCOSITY