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Divertor heat flux simulations in ELMy H-mode discharges of EAST
Xia, T. Y.1; Xu, X. Q.2; Wu, Y. B.1,3,4; Huang, Y. Q.1,5; Wang, L.1; Zheng, Z.1,5; Liu, J. B.1; Zang, Q.1; Li, Y. Y.1; Zhao, D.1; EAST Team1
2017-11-01
Source PublicationNUCLEAR FUSION
Volume57Issue:11
AbstractThis paper presents heat flux simulations for the ELMy H-mode on the Experimental Advanced Superconducting Tokamak (EAST) using a six-field two-fluid model in BOUT++. Three EAST ELMy H-mode discharges with different plasma currents I-p and geometries are studied. The trend of the scrape-off layer width lambda(q) with I-p is reproduced by the simulation. The simulated width is only half of that derived from the EAST scaling law, but agrees well with the international multi-machine scaling law. Note that there is no radio-frequency (RF) heating scheme in the simulations, and RF heating can change the boundary topology and increase the flux expansion. Anomalous electron transport is found to contribute to the divertor heat fluxes. A coherent mode is found in the edge region in simulations. The frequency and poloidal wave number k(theta) are in the range of the edge coherent mode in EAST. The magnetic fluctuations of the mode are smaller than the electric field fluctuations. Statistical analysis of the type of turbulence shows that the turbulence transport type (blobby or turbulent) does not influence the heat flux width scaling. The two-point model differs from the simulation results but the drift-based model shows good agreement with simulations.
SubtypeArticle
KeywordEast Simulations Heat Flux Width H-mode
WOS HeadingsScience & Technology ; Physical Sciences
Funding OrganizationJSPS-NRF-NSFC A3 Foresight Program in the field of Plasma Physics (NSFC)(11261140328) ; JSPS-NRF-NSFC A3 Foresight Program in the field of Plasma Physics (NSFC)(11261140328) ; JSPS-NRF-NSFC A3 Foresight Program in the field of Plasma Physics (NRF)(2012K2A2A6000443) ; JSPS-NRF-NSFC A3 Foresight Program in the field of Plasma Physics (NRF)(2012K2A2A6000443) ; US Department of Energy by Lawrence Livermore National Laboratory(DE-AC52-07NA27344) ; US Department of Energy by Lawrence Livermore National Laboratory(DE-AC52-07NA27344) ; China Natural Science Foundation(11405215 ; China Natural Science Foundation(11405215 ; National Magnetic Confinement Fusion Science Program of China(2014GB106001 ; National Magnetic Confinement Fusion Science Program of China(2014GB106001 ; 11405217 ; 11405217 ; 2013GB111002) ; 2013GB111002) ; 11505236 ; 11505236 ; 11675217) ; 11675217) ; JSPS-NRF-NSFC A3 Foresight Program in the field of Plasma Physics (NSFC)(11261140328) ; JSPS-NRF-NSFC A3 Foresight Program in the field of Plasma Physics (NSFC)(11261140328) ; JSPS-NRF-NSFC A3 Foresight Program in the field of Plasma Physics (NRF)(2012K2A2A6000443) ; JSPS-NRF-NSFC A3 Foresight Program in the field of Plasma Physics (NRF)(2012K2A2A6000443) ; US Department of Energy by Lawrence Livermore National Laboratory(DE-AC52-07NA27344) ; US Department of Energy by Lawrence Livermore National Laboratory(DE-AC52-07NA27344) ; China Natural Science Foundation(11405215 ; China Natural Science Foundation(11405215 ; National Magnetic Confinement Fusion Science Program of China(2014GB106001 ; National Magnetic Confinement Fusion Science Program of China(2014GB106001 ; 11405217 ; 11405217 ; 2013GB111002) ; 2013GB111002) ; 11505236 ; 11505236 ; 11675217) ; 11675217)
DOI10.1088/1741-4326/aa7bba
Indexed BySCI
Language英语
Funding OrganizationJSPS-NRF-NSFC A3 Foresight Program in the field of Plasma Physics (NSFC)(11261140328) ; JSPS-NRF-NSFC A3 Foresight Program in the field of Plasma Physics (NSFC)(11261140328) ; JSPS-NRF-NSFC A3 Foresight Program in the field of Plasma Physics (NRF)(2012K2A2A6000443) ; JSPS-NRF-NSFC A3 Foresight Program in the field of Plasma Physics (NRF)(2012K2A2A6000443) ; US Department of Energy by Lawrence Livermore National Laboratory(DE-AC52-07NA27344) ; US Department of Energy by Lawrence Livermore National Laboratory(DE-AC52-07NA27344) ; China Natural Science Foundation(11405215 ; China Natural Science Foundation(11405215 ; National Magnetic Confinement Fusion Science Program of China(2014GB106001 ; National Magnetic Confinement Fusion Science Program of China(2014GB106001 ; 11405217 ; 11405217 ; 2013GB111002) ; 2013GB111002) ; 11505236 ; 11505236 ; 11675217) ; 11675217) ; JSPS-NRF-NSFC A3 Foresight Program in the field of Plasma Physics (NSFC)(11261140328) ; JSPS-NRF-NSFC A3 Foresight Program in the field of Plasma Physics (NSFC)(11261140328) ; JSPS-NRF-NSFC A3 Foresight Program in the field of Plasma Physics (NRF)(2012K2A2A6000443) ; JSPS-NRF-NSFC A3 Foresight Program in the field of Plasma Physics (NRF)(2012K2A2A6000443) ; US Department of Energy by Lawrence Livermore National Laboratory(DE-AC52-07NA27344) ; US Department of Energy by Lawrence Livermore National Laboratory(DE-AC52-07NA27344) ; China Natural Science Foundation(11405215 ; China Natural Science Foundation(11405215 ; National Magnetic Confinement Fusion Science Program of China(2014GB106001 ; National Magnetic Confinement Fusion Science Program of China(2014GB106001 ; 11405217 ; 11405217 ; 2013GB111002) ; 2013GB111002) ; 11505236 ; 11505236 ; 11675217) ; 11675217)
WOS Research AreaPhysics
WOS SubjectPhysics, Fluids & Plasmas
WOS IDWOS:000407218600005
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.hfcas.ac.cn:8080/handle/334002/33586
Collection中科院等离子体物理研究所
Affiliation1.Chinese Acad Sci, Inst Plasma Phys, Hefei, Anhui, Peoples R China
2.Lawrence Livermore Natl Lab, Livermore, CA 94550 USA
3.Anqing Normal Univ, Anqing, Peoples R China
4.Donghua Univ, Shanhai, Peoples R China
5.Univ Sci & Technol China, Hefei, Anhui, Peoples R China
Recommended Citation
GB/T 7714
Xia, T. Y.,Xu, X. Q.,Wu, Y. B.,et al. Divertor heat flux simulations in ELMy H-mode discharges of EAST[J]. NUCLEAR FUSION,2017,57(11).
APA Xia, T. Y..,Xu, X. Q..,Wu, Y. B..,Huang, Y. Q..,Wang, L..,...&EAST Team.(2017).Divertor heat flux simulations in ELMy H-mode discharges of EAST.NUCLEAR FUSION,57(11).
MLA Xia, T. Y.,et al."Divertor heat flux simulations in ELMy H-mode discharges of EAST".NUCLEAR FUSION 57.11(2017).
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