Validation of the kinetic-turbulent-neoclassical theory for edge intrinsic rotation in DIII-D
Abstract
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.
- Publication Date:
- Research Org.:
- General Atomics, San Diego, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1481176
- Alternate Identifier(s):
- OSTI ID: 1439759
- Grant/Contract Number:
- FC02-04ER54698; AC02-09CH11466
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physics of Plasmas
- Additional Journal Information:
- Journal Volume: 25; Journal Issue: 5; Journal ID: ISSN 1070-664X
- Publisher:
- American Institute of Physics (AIP)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 70 PLASMA PHYSICS AND FUSION TECHNOLOGY
Citation Formats
Ashourvan, Arash, Grierson, B. A., Battaglia, D. J., Haskey, S. R., and Stoltzfus-Dueck, T. Validation of the kinetic-turbulent-neoclassical theory for edge intrinsic rotation in DIII-D. United States: N. p., 2018.
Web. doi:10.1063/1.5018326.
Ashourvan, Arash, Grierson, B. A., Battaglia, D. J., Haskey, S. R., & Stoltzfus-Dueck, T. Validation of the kinetic-turbulent-neoclassical theory for edge intrinsic rotation in DIII-D. United States. https://doi.org/10.1063/1.5018326
Ashourvan, Arash, Grierson, B. A., Battaglia, D. J., Haskey, S. R., and Stoltzfus-Dueck, T. Thu .
"Validation of the kinetic-turbulent-neoclassical theory for edge intrinsic rotation in DIII-D". United States. https://doi.org/10.1063/1.5018326. https://www.osti.gov/servlets/purl/1481176.
@article{osti_1481176,
title = {Validation of the kinetic-turbulent-neoclassical theory for edge intrinsic rotation in DIII-D},
author = {Ashourvan, Arash and Grierson, B. A. and Battaglia, D. J. and Haskey, S. R. and Stoltzfus-Dueck, T.},
abstractNote = {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.},
doi = {10.1063/1.5018326},
journal = {Physics of Plasmas},
number = 5,
volume = 25,
place = {United States},
year = {Thu May 31 00:00:00 EDT 2018},
month = {Thu May 31 00:00:00 EDT 2018}
}
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Cited by: 8 works
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Figures / Tables:
FIG. 1: (a) Evolution of main-ion and impurity rotation velocities near the pedestal top ρ ∼ 0.8, for a representative H-mode DⅢ-D discharge, included in the database. (b) Comparison between the measured main-ion deuterium rotation velocity and the neoclassical deuterium velocity inferred from carbon velocity measurements via the KDG method,more »
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Works referencing / citing this record:
Main-ion intrinsic toroidal rotation across the ITG/TEM boundary in DIII-D discharges during ohmic and electron cyclotron heating
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Figures / Tables found in this record:
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