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

Ashourvan, Arash; Grierson, B. A.; Battaglia, D. J.; Haskey, S. R.; Stoltzfus-Dueck, T.

doi:10.1063/1.5018326

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

Journal Article · Thu May 31 00:00:00 EDT 2018 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.5018326· OSTI ID:1481176

Ashourvan, Arash ^[1]; Grierson, B. A. ^[2]; Battaglia, D. J. ^[2]; ^[2]; ^[2]

Princeton Univ., Princeton, NJ (United States). Princeton Plasma Physics Lab.; General Atomics
Princeton Univ., Princeton, NJ (United States). Princeton Plasma Physics Lab.

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.

View Accepted Manuscript (DOE)

Research Organization:: General Atomics, San Diego, CA (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC02-09CH11466; FC02-04ER54698

OSTI ID:: 1481176

Alternate ID(s):: OSTI ID: 1439759

Journal Information:: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 5 Vol. 25; ISSN 1070-664X

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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