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Title: ELMy H-mode linear simulation with 3-field model on experimental advanced superconducting tokamak using BOUT++

Abstract

H-mode plasmas with ELM (edge localized mode) have been realized on experimental advanced superconducting tokamak (EAST) with 2.45 GHz low hybrid wave at P{sub LHW}{approx}1 MW in 2010. Data from EAST experiments including magnetic geometry, measured pressure profiles, and calculated current profiles are used to investigate the physics of ELM utilizing the BOUT++ code. Results from linear simulations show that the ELMs in EAST are dominated by resistive ballooning modes. When the Lundquist number (dimensionless ratio of the resistive diffusion time to the Alfven time) is equal to or less than 10{sup 7}, the resistive ballooning modes are found to become unstable in the ELMy H-mode plasma. For a fixed pedestal pressure profile, increasing plasma current generates more activities of low-n ELMs.

Authors:
; ; ; ;  [1];  [1];  [2];  [3]
  1. Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031 (China)
  2. Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)
  3. Massachusetts Institute of Technology, Plasma Science and Fusion Center, 175 Albany Street, Cambridge, Massachusetts 02139 (United States)
Publication Date:
OSTI Identifier:
22068815
Resource Type:
Journal Article
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 19; Journal Issue: 10; Other Information: (c) 2012 American Institute of Physics; 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; ALFVEN WAVES; BALLOONING INSTABILITY; EDGE LOCALIZED MODES; ELECTRIC CURRENTS; GHZ RANGE; H-MODE PLASMA CONFINEMENT; HT-7U TOKAMAK

Citation Formats

Liu, Z X, Gao, X, Liu, S C, Ding, S Y, Li, J G, Xia, T Y, Lawrence Livermore National Laboratory, Livermore, California 94550, Xu, X Q, and Hughes, J W. ELMy H-mode linear simulation with 3-field model on experimental advanced superconducting tokamak using BOUT++. United States: N. p., 2012. Web. doi:10.1063/1.4757220.
Liu, Z X, Gao, X, Liu, S C, Ding, S Y, Li, J G, Xia, T Y, Lawrence Livermore National Laboratory, Livermore, California 94550, Xu, X Q, & Hughes, J W. ELMy H-mode linear simulation with 3-field model on experimental advanced superconducting tokamak using BOUT++. United States. https://doi.org/10.1063/1.4757220
Liu, Z X, Gao, X, Liu, S C, Ding, S Y, Li, J G, Xia, T Y, Lawrence Livermore National Laboratory, Livermore, California 94550, Xu, X Q, and Hughes, J W. 2012. "ELMy H-mode linear simulation with 3-field model on experimental advanced superconducting tokamak using BOUT++". United States. https://doi.org/10.1063/1.4757220.
@article{osti_22068815,
title = {ELMy H-mode linear simulation with 3-field model on experimental advanced superconducting tokamak using BOUT++},
author = {Liu, Z X and Gao, X and Liu, S C and Ding, S Y and Li, J G and Xia, T Y and Lawrence Livermore National Laboratory, Livermore, California 94550 and Xu, X Q and Hughes, J W},
abstractNote = {H-mode plasmas with ELM (edge localized mode) have been realized on experimental advanced superconducting tokamak (EAST) with 2.45 GHz low hybrid wave at P{sub LHW}{approx}1 MW in 2010. Data from EAST experiments including magnetic geometry, measured pressure profiles, and calculated current profiles are used to investigate the physics of ELM utilizing the BOUT++ code. Results from linear simulations show that the ELMs in EAST are dominated by resistive ballooning modes. When the Lundquist number (dimensionless ratio of the resistive diffusion time to the Alfven time) is equal to or less than 10{sup 7}, the resistive ballooning modes are found to become unstable in the ELMy H-mode plasma. For a fixed pedestal pressure profile, increasing plasma current generates more activities of low-n ELMs.},
doi = {10.1063/1.4757220},
url = {https://www.osti.gov/biblio/22068815}, journal = {Physics of Plasmas},
issn = {1070-664X},
number = 10,
volume = 19,
place = {United States},
year = {Mon Oct 15 00:00:00 EDT 2012},
month = {Mon Oct 15 00:00:00 EDT 2012}
}

Works referencing / citing this record:

Impact of inward turbulence spreading on energy loss of edge-localized modesa)
journal, May 2015