Počet záznamů: 1
Non-linear MHD modeling of edge localized mode cycles and mitigation by resonant magnetic perturbations
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SYSNO ASEP 0454112 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Non-linear MHD modeling of edge localized mode cycles and mitigation by resonant magnetic perturbations Tvůrce(i) Orain, F. (FR)
Bécoulet, M. (FR)
Morales, J. (FR)
Huijsmans, G.T.A. (FR)
Dif-Pradalier, G. (FR)
Hoelzl, M. (DE)
Garbet, X. (FR)
Pamela, S. (GB)
Nardon, E. (FR)
Passeron, C. (FR)
Latu, G. (FR)
Fil, A. (FR)
Cahyna, Pavel (UFP-V) RIDČíslo článku 014020 Zdroj.dok. Plasma Physics and Controlled Fusion. - : Institute of Physics Publishing - ISSN 0741-3335
Roč. 57, č. 1 (2015)Poč.str. 10 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova ELM ; RMP ; MHD ; cycles ; mitigation ; tokamaks ; plasmas Vědní obor RIV BL - Fyzika plazmatu a výboje v plynech Obor OECD Fluids and plasma physics (including surface physics) Institucionální podpora UFP-V - RVO:61389021 UT WOS 000348194900021 EID SCOPUS 84913558457 DOI 10.1088/0741-3335/57/1/014020 Anotace The dynamics of a multi-edge localized mode (ELM) cycle as well as the ELM mitigation by resonant magnetic perturbations (RMPs) are modeled in realistic tokamak X-point geometry with the non-linear reduced MHD code JOREK. The diamagnetic rotation is found to be a key parameter enabling us to reproduce the cyclical dynamics of the plasma relaxations and to model the near-symmetric ELM power deposition on the inner and outer divertor target plates consistently with experimental measurements. Moreover, the non-linear coupling of the RMPs with unstable modes are found to modify the edge magnetic topology and induce a continuous MHD activity in place of a large ELM crash, resulting in the mitigation of the ELMs. At larger diamagnetic rotation, a bifurcation from unmitigated ELMs-at low RMP current-towards fully suppressed ELMs-at large RMP current-is obtained Pracoviště Ústav fyziky plazmatu Kontakt Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Rok sběru 2016
Počet záznamů: 1