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Statements

Subject Item
n2:RIV%2F61389021%3A_____%2F14%3A00435991%21RIV15-GA0-61389021
rdf:type
skos:Concept n13:Vysledek
dcterms:description
A possible mechanism of edge localized modes (ELMs) mitigation by resonant magnetic perturbations (RMPs) is proposed based on the results of nonlinear resistive magnetohydrodynamic modeling using the JOREK code, realistic JET-like plasma parameters and an RMP spectrum of JET error-field correction coils (EFCC) with a main toroidal number n = 2 were used in the simulations. Without RMPs, a large ELM relaxation is obtained mainly due to the most unstable medium-n ballooning mode. The externally imposed RMP drives nonlinearly the modes coupled to n = 2 RMP which produce small multimode relaxations, mitigated ELMs. The modes driven by RMPs exhibit a tearinglike structure and produce additional islands. Mitigated ELMs deposit energy into the divertor mainly in the structures (%22footprints%22) created by n = 2 RMPs, however, slightly modulated by other nonlinearly driven even harmonics. The divertor power flux during a ELM phase mitigated by RMPs is reduced almost by a factor of 10. A possible mechanism of edge localized modes (ELMs) mitigation by resonant magnetic perturbations (RMPs) is proposed based on the results of nonlinear resistive magnetohydrodynamic modeling using the JOREK code, realistic JET-like plasma parameters and an RMP spectrum of JET error-field correction coils (EFCC) with a main toroidal number n = 2 were used in the simulations. Without RMPs, a large ELM relaxation is obtained mainly due to the most unstable medium-n ballooning mode. The externally imposed RMP drives nonlinearly the modes coupled to n = 2 RMP which produce small multimode relaxations, mitigated ELMs. The modes driven by RMPs exhibit a tearinglike structure and produce additional islands. Mitigated ELMs deposit energy into the divertor mainly in the structures (%22footprints%22) created by n = 2 RMPs, however, slightly modulated by other nonlinearly driven even harmonics. The divertor power flux during a ELM phase mitigated by RMPs is reduced almost by a factor of 10.
dcterms:title
Mechanism of Edge Localized Mode Mitigation by Resonant Magnetic Perturbations Mechanism of Edge Localized Mode Mitigation by Resonant Magnetic Perturbations
skos:prefLabel
Mechanism of Edge Localized Mode Mitigation by Resonant Magnetic Perturbations Mechanism of Edge Localized Mode Mitigation by Resonant Magnetic Perturbations
skos:notation
RIV/61389021:_____/14:00435991!RIV15-GA0-61389021
n3:aktivita
n18:P n18:I
n3:aktivity
I, P(GAP205/11/2341)
n3:cisloPeriodika
11
n3:dodaniDat
n11:2015
n3:domaciTvurceVysledku
n9:8684014
n3:druhVysledku
n17:J
n3:duvernostUdaju
n7:S
n3:entitaPredkladatele
n5:predkladatel
n3:idSjednocenehoVysledku
28126
n3:idVysledku
RIV/61389021:_____/14:00435991
n3:jazykVysledku
n14:eng
n3:klicovaSlova
tokamak; ELMs
n3:klicoveSlovo
n12:tokamak n12:ELMs
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[43CEB644BDA2]
n3:nazevZdroje
Physical Review Letters
n3:obor
n16:BL
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
18
n3:projekt
n4:GAP205%2F11%2F2341
n3:rokUplatneniVysledku
n11:2014
n3:svazekPeriodika
113
n3:tvurceVysledku
Franck, E. Bécoulet, M. Latu, G. Huijsmans, G.T.A. Dif-Pradalier, G. Garbet, X. Ratnani, A. Pamela, S. Grandgirard, V. Orain, F. Morales, J. Cahyna, Pavel Fil, A. Nardon, E. Hoelzl, M. Sonnendruecker, E. Nkonga, B. Passeron, C.
n3:wos
000341298200003
s:issn
0031-9007
s:numberOfPages
5
n6:doi
10.1103/PhysRevLett.113.115001