Non-linear modeling of the Edge Localized Modes and their control by Resonant Magnetic Perturbations in ASDEX Upgrade

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Non-linear modeling of the Edge Localized Modes and their control by Resonant Magnetic Perturbations in ASDEX Upgrade

Popis výsledku v původním jazyce

The experimental and theoretical study of Edge Localized Modes (ELMs) - occurring in the High confinement regime (H-mode) at the edge of tokamak plasmas - and their possible control methods (to mitigate the heat flux on divertor targets) is a crucial subject for current and future tokamaks. One foreseen ELM control method in ITER is the application of Resonant Magnetic Perturbations (RMPs), already proven capable to mitigate or suppress ELMs in existing tokamaks [1]. However signifcant progress in understanding the ELM dynamics, the plasma response to RMPs and the ELM interaction with RMPs is needed to improve predictive capabilities.nIn this perspective, the ELM dynamics as well as the interaction between plasma and RMPs were modeled with the non-linear resistive MHD code JOREK with two-fluid effects [2,3]. The reconstructed ASDEX Upgrade equilibria and plasma parameters from H-mode discharges #23221 and #31128 [4] were used as input. A simulation is run as follows: first, the axisymmetric equilibrium is computednusing temperature, density, current and toroidal rotation profiles. Two-fluid diamagnetic rotation (as well as neoclassical friction in the RMP section) are also included, impacting axisymmetric flows.

Název v anglickém jazyce

Non-linear modeling of the Edge Localized Modes and their control by Resonant Magnetic Perturbations in ASDEX Upgrade

Popis výsledku anglicky

The experimental and theoretical study of Edge Localized Modes (ELMs) - occurring in the High confinement regime (H-mode) at the edge of tokamak plasmas - and their possible control methods (to mitigate the heat flux on divertor targets) is a crucial subject for current and future tokamaks. One foreseen ELM control method in ITER is the application of Resonant Magnetic Perturbations (RMPs), already proven capable to mitigate or suppress ELMs in existing tokamaks [1]. However signifcant progress in understanding the ELM dynamics, the plasma response to RMPs and the ELM interaction with RMPs is needed to improve predictive capabilities.nIn this perspective, the ELM dynamics as well as the interaction between plasma and RMPs were modeled with the non-linear resistive MHD code JOREK with two-fluid effects [2,3]. The reconstructed ASDEX Upgrade equilibria and plasma parameters from H-mode discharges #23221 and #31128 [4] were used as input. A simulation is run as follows: first, the axisymmetric equilibrium is computednusing temperature, density, current and toroidal rotation profiles. Two-fluid diamagnetic rotation (as well as neoclassical friction in the RMP section) are also included, impacting axisymmetric flows.

Druh

D - Stať ve sborníku

CEP obor

BL - Fyzika plasmatu a výboje v plynech

OECD FORD obor

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Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

EPS 2016: 43rd European Physical Society Conference on Plasma Physics

ISBN

2-914771-99-1

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

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Název nakladatele

European Physical Society

Místo vydání

Mulhouse

Místo konání akce

Leuven

Datum konání akce

4. 7. 2016

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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