(Georgia Institute of Technology, 2006)
Stacey, Weston M.; Johnson, R. W.; Mandrekas, John
Momentum and particle balance and neoclassical viscosity were applied to
calculate the radial profile of toroidal rotation velocity in several DIII-D [J. Luxon, Nucl.
Fusion, 42, 614 (2002)] discharges in a variety of energy confinement regimes (Lowmode,
Low-mode with Internal Transport Barrier, High-mode, and High-mode with
Quiescent Double Barrier). Calculated toroidal rotation velocities generally were found
to (over-) predict measured values to well within a factor of 2.
(Georgia Institute of Technology, 2005-10)
Stacey, Weston M.; Johnson, R. W.; Mandrekas, John
Momentum and particle balance and neoclassical viscosity were applied to calculate the radial
profile of toroidal rotation in several DIII-D [J. Luxon, Nucl. Fusion, 42, 614 (2002)] discharges in a
variety of energy confinement regimes (Low-mode, Low-mode with Internal Transport Barrier, Highmode,
and High-mode with Quiescent Double Barrier). Calculated toroidal rotation velocities were found
to over-predict measured values most in the center—by factors of 1.5 to 3--with the over-prediction
generally decreasing with increasing radius, for the L, H and ITB mode shots, but the single impurity
species approximation could not properly model the multiple Ni and Cu charge states in the QDB shots.