Rotation and momentum transport in tokamaks and helical systems

K Ida, JE Rice - Nuclear Fusion, 2014 - iopscience.iop.org
Poloidal and toroidal rotation has been recognized to play an important role in heat transport
and magnetohydrodynamic (MHD) stability in tokamaks and helical systems. It is well known …

Experimental observations of driven and intrinsic rotation in tokamak plasmas

JE Rice - Plasma Physics and Controlled Fusion, 2016 - iopscience.iop.org
Experimental observations of driven and intrinsic rotation in tokamak plasmas are reviewed.
For momentum sources, there is direct drive from neutral beam injection, lower hybrid and …

Overview of toroidal momentum transport

AG Peeters, C Angioni, A Bortolon, Y Camenen… - Nuclear …, 2011 - iopscience.iop.org
Toroidal momentum transport mechanisms are reviewed and put in a broader perspective.
The generation of a finite momentum flux is closely related to the breaking of symmetry …

Off-diagonal particle and toroidal momentum transport: a survey of experimental, theoretical and modelling aspects

C Angioni, Y Camenen, FJ Casson, E Fable… - Nuclear …, 2012 - iopscience.iop.org
In tokamaks, turbulent particle and toroidal momentum transport are both characterized by
the presence of off-diagonal contributions which play an essential role in establishing the …

Consequences of profile shearing on toroidal momentum transport

Y Camenen, Y Idomura, S Jolliet, AG Peeters - Nuclear Fusion, 2011 - iopscience.iop.org
Turbulent transport of toroidal momentum is investigated in global linear gyrokinetic
simulations. The poloidal tilt of the global mode structure arising from the radial variation of …

Transport of parallel momentum induced by current-symmetry breaking in toroidal plasmas

Y Camenen, AG Peeters, C Angioni, FJ Casson… - Physical review …, 2009 - APS
The symmetry of a physical system strongly impacts on its properties. In toroidal plasmas,
the symmetry along a magnetic field line usually constrains the radial flux of parallel …

Observations of core toroidal rotation reversals in Alcator C-Mod ohmic L-mode plasmas

JE Rice, BP Duval, ML Reinke, YA Podpaly… - Nuclear …, 2011 - iopscience.iop.org
Direction reversals of intrinsic toroidal rotation have been observed in Alcator C-Mod ohmic
L-mode plasmas following modest electron density or toroidal magnetic field ramps. The …

Rotation Reversal Bifurcation and Energy Confinement Saturation <?format ?>in Tokamak Ohmic -Mode Plasmas

JE Rice, I Cziegler, PH Diamond, BP Duval… - Physical Review Letters, 2011 - APS
Direction reversals of intrinsic toroidal rotation have been observed in diverted Alcator C-
Mod Ohmic L-mode plasmas following electron density ramps. For low density discharges …

Non-local heat transport, rotation reversals and up/down impurity density asymmetries in Alcator C-Mod ohmic L-mode plasmas

JE Rice, C Gao, ML Reinke, PH Diamond… - Nuclear …, 2013 - iopscience.iop.org
Several seemingly unrelated effects in Alcator C-Mod ohmic L-mode plasmas are shown to
be closely connected: non-local heat transport, core toroidal rotation reversals, energy …

Intrinsic toroidal velocity near the edge of DIII-D H-mode plasmas

JS DeGrassie, RJ Groebner, KH Burrell… - Nuclear …, 2009 - iopscience.iop.org
The intrinsic toroidal velocity, V ϕ, in DIII-D (Luxon 2002 Nucl. Fusion 42 614) H-modes is
measured to be nonzero in the pedestal region, in the direction of the plasma current, co-I p …