Comparison of neoclassical rotation theory with experiment under a variety of conditions in DIII-D

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Title: Comparison of neoclassical rotation theory with experiment under a variety of conditions in DIII-D
Author: Stacey, Weston M. ; Mandrekas, John
Abstract: A neoclassical theory of gyroviscous radial momentum transport and poloidal and toroidal rotation has been compared with experiment in DIII-D discharges in different confinement regimes, with a range of neutral beam powers and with co- and counter-injection, and with various types of dominant impurity species present. Calculated central toroidal rotation velocities and momentum confinement times agreed with experiment over a wide range of these conditions, with one notable exception in which a drift correction may be needed to reduce the gyroviscous toroidal force. Radial distributions of toroidal rotation velocities and radial electric field, calculated using the radial distribution of toroidal angular momentum input density, agreed with measured distributions.
Description: Reprinted by permission of American Institute of Physics, http://journals.aip.org
Type: Post-print
URI: http://hdl.handle.net/1853/9299
Citation: Physics of plasmas, Vol. 9, no. 5 (March 2002) p. 1622-1628
Date: 2002-03
Publisher: Georgia Institute of Technology
American Institute of Physics
Subject: Charged-particle transport
Plasma confinement
Plasma density
Plasma impurities
Rotation
Toroidal configuration
Viscosity

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