Momentum transport in DIII-D discharges with and without magnetohydrodynamics (MHD) activity

Ren Qilong; M. S. Chu; L. L. Lao; H. St John; R. Lahaye; Y. M. Jeon; Zhang Cheng; Zhou Deng; Li Guoqiang; J. M. Park; J. S. Degrassie

doi:10.1088/1009-0630/11/1/25

Momentum transport in DIII-D discharges with and without magnetohydrodynamics (MHD) activity

Ren Qilong, M. S. Chu, L. L. Lao, H. St John, R. Lahaye, Y. M. Jeon, Zhang Cheng, Zhou Deng, Li Guoqiang, J. M. Park, J. S. Degrassie

Plasma Theory and Modeling

Research output: Contribution to journal › Article › peer-review

Abstract

Two phases of a DIII-D discharge with and without magnetohydrodynamics (MHD) activity are analysed using ONETWO code. The toroidal momentum flux is extracted from experimental data and compared with the predictions by neoclassical theory, Gyro-Landau fluid transport model (GLF23) and Multi-Mode model (MMM95). It is found that without MHD activities GLF23 and MMM95 provide a reasonable description while with MHD activity no model alone can fully describe the experimental momentum flux. For the phase with MHD activity a simple model of resonant magnetic drag is tested and it cannot fully explain the plasma slowing down observed in experiment.

Original language	English
Article number	25
Pages (from-to)	127-130
Number of pages	4
Journal	Plasma Science and Technology
Volume	11
Issue number	1
DOIs	https://doi.org/10.1088/1009-0630/11/1/25
State	Published - 2009

Keywords

MHD activity
Magnetic drag
Toroidal rotation

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1088/1009-0630/11/1/25

Cite this

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title = "Momentum transport in DIII-D discharges with and without magnetohydrodynamics (MHD) activity",

abstract = "Two phases of a DIII-D discharge with and without magnetohydrodynamics (MHD) activity are analysed using ONETWO code. The toroidal momentum flux is extracted from experimental data and compared with the predictions by neoclassical theory, Gyro-Landau fluid transport model (GLF23) and Multi-Mode model (MMM95). It is found that without MHD activities GLF23 and MMM95 provide a reasonable description while with MHD activity no model alone can fully describe the experimental momentum flux. For the phase with MHD activity a simple model of resonant magnetic drag is tested and it cannot fully explain the plasma slowing down observed in experiment.",

keywords = "MHD activity, Magnetic drag, Toroidal rotation",

author = "Ren Qilong and Chu, {M. S.} and Lao, {L. L.} and John, {H. St} and R. Lahaye and Jeon, {Y. M.} and Zhang Cheng and Zhou Deng and Li Guoqiang and Park, {J. M.} and Degrassie, {J. S.}",

year = "2009",

doi = "10.1088/1009-0630/11/1/25",

language = "English",

volume = "11",

pages = "127--130",

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TY - JOUR

T1 - Momentum transport in DIII-D discharges with and without magnetohydrodynamics (MHD) activity

AU - Qilong, Ren

AU - Chu, M. S.

AU - Lao, L. L.

AU - John, H. St

AU - Lahaye, R.

AU - Jeon, Y. M.

AU - Cheng, Zhang

AU - Deng, Zhou

AU - Guoqiang, Li

AU - Park, J. M.

AU - Degrassie, J. S.

PY - 2009

Y1 - 2009

N2 - Two phases of a DIII-D discharge with and without magnetohydrodynamics (MHD) activity are analysed using ONETWO code. The toroidal momentum flux is extracted from experimental data and compared with the predictions by neoclassical theory, Gyro-Landau fluid transport model (GLF23) and Multi-Mode model (MMM95). It is found that without MHD activities GLF23 and MMM95 provide a reasonable description while with MHD activity no model alone can fully describe the experimental momentum flux. For the phase with MHD activity a simple model of resonant magnetic drag is tested and it cannot fully explain the plasma slowing down observed in experiment.

AB - Two phases of a DIII-D discharge with and without magnetohydrodynamics (MHD) activity are analysed using ONETWO code. The toroidal momentum flux is extracted from experimental data and compared with the predictions by neoclassical theory, Gyro-Landau fluid transport model (GLF23) and Multi-Mode model (MMM95). It is found that without MHD activities GLF23 and MMM95 provide a reasonable description while with MHD activity no model alone can fully describe the experimental momentum flux. For the phase with MHD activity a simple model of resonant magnetic drag is tested and it cannot fully explain the plasma slowing down observed in experiment.

KW - MHD activity

KW - Magnetic drag

KW - Toroidal rotation

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U2 - 10.1088/1009-0630/11/1/25

DO - 10.1088/1009-0630/11/1/25

M3 - Article

AN - SCOPUS:65449135992

SN - 1009-0630

VL - 11

SP - 127

EP - 130

JO - Plasma Science and Technology

JF - Plasma Science and Technology

IS - 1

M1 - 25

ER -

Momentum transport in DIII-D discharges with and without magnetohydrodynamics (MHD) activity

Abstract

Keywords

UN SDGs

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