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Title: Validation of the kinetic-turbulent-neoclassical theory for edge intrinsic rotation in DIII-D

Journal Article · · Physics of Plasmas
DOI:https://doi.org/10.1063/1.5018326· OSTI ID:1481176

In a recent kinetic model of edge main-ion (deuterium) toroidal velocity, intrinsic rotation results from neoclassical orbits in an inhomogeneous turbulent field [T. Stoltzfus-Dueck, Phys. Rev. Lett. 108, 065002 (2012)]. This model predicts a value for the toroidal velocity that is co-current for a typical inboard X-point plasma at the core-edge boundary (ρ ~ 0.9). Using this model, the velocity prediction is tested on the DIII-D tokamak for a database of L-mode and H-mode plasmas with nominally low neutral beam torque, including both signs of plasma current. Values for the flux-surface-averaged main-ion rotation velocity in the database are obtained from the impurity carbon rotation by analytically calculating the main-ion—impurity neoclassical offset. Here, the deuterium rotation obtained in this manner has been validated by direct main-ion measurements for a limited number of cases.

Research Organization:
General Atomics, San Diego, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
FC02-04ER54698; AC02-09CH11466
OSTI ID:
1481176
Alternate ID(s):
OSTI ID: 1439759
Journal Information:
Physics of Plasmas, Vol. 25, Issue 5; ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 8 works
Citation information provided by
Web of Science

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Cited By (5)

Main-ion intrinsic toroidal rotation across the ITG/TEM boundary in DIII-D discharges during ohmic and electron cyclotron heating journal April 2019
Main ion and impurity edge profile evolution across the L- to H-mode transition on DIII-D journal August 2018
Intrinsic rotation in axisymmetric devices journal November 2019
DIII-D shaping demonstrates correlation of intrinsic momentum with energy journal July 2019
Predicting the rotation profile in ITER journal January 2020

Figures / Tables (15)