Nonlinear error field response in the presence of plasma rotation and real frequencies due to favorable curvature

Akçay, Cihan; Finn, John M.; Cole, Andrew J.; Brennan, Dylan P.

doi:10.1063/1.5144470

Nonlinear error field response in the presence of plasma rotation and real frequencies due to favorable curvature

Journal Article · Wed Mar 04 00:00:00 EST 2020 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.5144470· OSTI ID:1773816

Akçay, Cihan ^[1]; Finn, John M. ^[2]; Cole, Andrew J. ^[3]; ^[4]

Tibbar Plasma Technologies Incorporated, Los Alamos, NM (United States); Tibbar Plasma Technologies Incorporated
Tibbar Plasma Technologies Incorporated, Los Alamos, NM (United States)
Columbia Univ., New York, NY (United States)
Princeton Univ., NJ (United States)

This works describes the interaction of an phenomenon known to arise in tokamak fusion experiments with the magnetic perturbations that can arise at the edge of such experiments. We present nonlinear NIMROD resistive MHD simulations of the response of a rotating plasma to an error field when the plasma has weakly damped linear tearing modes (TMs), stabilized by a pressure gradient and favorable curvature. The favorable curvature leads to the Glasser effect: the occurrence of real frequencies and stabilization with positive stability index Δ'.

View Accepted Manuscript (DOE)

Research Organization:: Tibbar Plasma Technologies Incorporated, Los Alamos, NM (United States)

Sponsoring Organization:: USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division; USDOE Office of Science (SC), Fusion Energy Sciences (FES)

Contributing Organization:: NERSC

Grant/Contract Number:: AC02-05CH11231; SC0014005; SC0014119; SC0019016

OSTI ID:: 1773816

Alternate ID(s):: OSTI ID: 1602893

Journal Information:: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 3 Vol. 27; ISSN 1070-664X

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

Country of Publication:: United States

Language:: English

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Nonlinear error field response in the presence of plasma rotation and real frequencies due to favorable curvature

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