Impact of screening of resonant magnetic perturbations in three dimensional edge plasma transport simulations for DIII-D

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F12%3A00380832" target="_blank" >RIV/61389021:_____/12:00380832 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1063/1.4714616" target="_blank" >http://dx.doi.org/10.1063/1.4714616</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/1.4714616" target="_blank" >10.1063/1.4714616</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Impact of screening of resonant magnetic perturbations in three dimensional edge plasma transport simulations for DIII-D

Popis výsledku v původním jazyce

The impact of resonant magnetic perturbations (RMPs) on the plasma edge can be analyzed in detail by three dimensional computer simulations, which take the underlying magnetic field structure as input. Previously, the "vacuum approximation" has been usedto calculate the magnetic field structure although plasma response effects may result in a screening (or even an amplification) of the external perturbations. Simulation results for an ITER similar shape plasma at the DIII-D tokamak are presented for the full vacuum perturbation field and an ad hoc screening case in comparison to the unperturbed configuration. It is shown that the RMP induced helical patterns in the plasma edge and on the divertor target shrink once screening is taken into account. However, a flat temperature profile is still found in the "open field line domain" inside the separatrix, while the "density pump out effect" found in the vacuum RMP case is considerably weakened.

Název v anglickém jazyce

Impact of screening of resonant magnetic perturbations in three dimensional edge plasma transport simulations for DIII-D

Popis výsledku anglicky

The impact of resonant magnetic perturbations (RMPs) on the plasma edge can be analyzed in detail by three dimensional computer simulations, which take the underlying magnetic field structure as input. Previously, the "vacuum approximation" has been usedto calculate the magnetic field structure although plasma response effects may result in a screening (or even an amplification) of the external perturbations. Simulation results for an ITER similar shape plasma at the DIII-D tokamak are presented for the full vacuum perturbation field and an ad hoc screening case in comparison to the unperturbed configuration. It is shown that the RMP induced helical patterns in the plasma edge and on the divertor target shrink once screening is taken into account. However, a flat temperature profile is still found in the "open field line domain" inside the separatrix, while the "density pump out effect" found in the vacuum RMP case is considerably weakened.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BL - Fyzika plasmatu a výboje v plynech

OECD FORD obor

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Projekt

<a href="/cs/project/GAP205%2F11%2F2341" target="_blank" >GAP205/11/2341: Kontrola okrajových nestabilit plazmatu v tokamacích pomocí vnějších magnetických poruch</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název periodika

Physics of Plasmas

ISSN

1070-664X

e-ISSN

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Svazek periodika

19

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

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Kód UT WoS článku

000304831100022

EID výsledku v databázi Scopus

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