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Title: Toroidal modeling of interaction between resistive wall mode and plasma flow

Abstract

The non-linear interplay between the resistive wall mode (RWM) and the toroidal plasma flow is numerically investigated in a full toroidal geometry, by simultaneously solving the initial value problems for the n = 1 RWM and the n = 0 toroidal force balance equation. Here, n is the toroidal mode number. The neoclassical toroidal viscous torque is identified as the major momentum sink that brakes the toroidal plasma flow during the non-linear evolution of the RWM. This holds for a mode that is initially either unstable or stable. For an initially stable RWM, the braking of the flow, and hence the eventual growth of the mode, depends critically on the initial perturbation amplitude.

Authors:
 [1];  [2]
  1. Euratom/CCFE Fusion Association, Culham Science Centre, Abingdon OX14 3DB (United Kingdom)
  2. Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031 (China)
Publication Date:
OSTI Identifier:
22113448
Resource Type:
Journal Article
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 20; Journal Issue: 2; Other Information: (c) 2013 EURATOM; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1070-664X
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; AMPLITUDES; CONFINEMENT; DISTURBANCES; EQUATIONS; INTERACTIONS; MAGNETOHYDRODYNAMICS; NEOCLASSICAL TRANSPORT THEORY; NUMERICAL ANALYSIS; PERTURBATION THEORY; PLASMA; PLASMA INSTABILITY; PLASMA SIMULATION

Citation Formats

Yueqiang, Liu, and Youwen, Sun. Toroidal modeling of interaction between resistive wall mode and plasma flow. United States: N. p., 2013. Web. doi:10.1063/1.4793449.
Yueqiang, Liu, & Youwen, Sun. Toroidal modeling of interaction between resistive wall mode and plasma flow. United States. https://doi.org/10.1063/1.4793449
Yueqiang, Liu, and Youwen, Sun. 2013. "Toroidal modeling of interaction between resistive wall mode and plasma flow". United States. https://doi.org/10.1063/1.4793449.
@article{osti_22113448,
title = {Toroidal modeling of interaction between resistive wall mode and plasma flow},
author = {Yueqiang, Liu and Youwen, Sun},
abstractNote = {The non-linear interplay between the resistive wall mode (RWM) and the toroidal plasma flow is numerically investigated in a full toroidal geometry, by simultaneously solving the initial value problems for the n = 1 RWM and the n = 0 toroidal force balance equation. Here, n is the toroidal mode number. The neoclassical toroidal viscous torque is identified as the major momentum sink that brakes the toroidal plasma flow during the non-linear evolution of the RWM. This holds for a mode that is initially either unstable or stable. For an initially stable RWM, the braking of the flow, and hence the eventual growth of the mode, depends critically on the initial perturbation amplitude.},
doi = {10.1063/1.4793449},
url = {https://www.osti.gov/biblio/22113448}, journal = {Physics of Plasmas},
issn = {1070-664X},
number = 2,
volume = 20,
place = {United States},
year = {Fri Feb 15 00:00:00 EST 2013},
month = {Fri Feb 15 00:00:00 EST 2013}
}