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

Liu, Z. X.; Xia, T. Y.; Xu, X. Q.; Gao, X.; Hughes, J. W.; Liu, S. C.; Ding, S. Y.; Li, J. G.

doi:10.1063/1.4757220

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

Journal Article · Thu Oct 04 00:00:00 EDT 2012 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4757220· OSTI ID:1357346

Liu, Z. X. ^[1]; Xia, T. Y. ^[2]; Xu, X. Q. ^[3]; Gao, X. ^[1]; Hughes, J. W. ^[4]; Liu, S. C. ^[1]; Ding, S. Y. ^[1]; Li, J. G. ^[1]

Chinese Academy of Sciences, Hefei (China). Inst. of Plasma Physics
Chinese Academy of Sciences, Hefei (China). Inst. of Plasma Physics; Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Massachusetts Inst. of Technology, Cambridge, MA (United States). Plasma Science and Fusion Center

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_LHW ~ 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 Alfvén time) is equal to or less than 10⁷, 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.

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Research Organization:: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC52-07NA27344

OSTI ID:: 1357346

Report Number(s):: LLNL-JRNL-569455

Journal Information:: Physics of Plasmas, Vol. 19, Issue 10; ISSN 1070-664X

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

Country of Publication:: United States

Language:: English

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Cited by: 6 works

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Impact of inward turbulence spreading on energy loss of edge-localized modesa) Ma, C. H.; Xu, X. Q.; Xi, P. W. Physics of Plasmas, Vol. 22, Issue 5 https://doi.org/10.1063/1.4920963	journal	May 2015

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