Soběstačná dvourozměrná simulace ukládání plazmatu v mezerách divertorových desek

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

Self-consistent 2D simulations of plasma deposition in tile gaps

Popis výsledku v původním jazyce

In order to withstand thermomechanical stress in ITER?s divertor, its armour will be castellated. Carbon layers and tritium will accumulate inside the gaps that separate the tiles. We present here the first self-consistent two-dimensional numerical studyof plasma deposition between tiles. The particle and energy deposition with respect to the depth and width of the gap are investigated for various gap widths. Scans of the inclination of the magnetic field lines and their orientation in both the perpendicular and parallel directions to the leading edge of the tiles are also performed. Due to a peculiar charge separation field, most of the ion influx is expelled from perpendicular gaps to be deposited on the leading edge of the downstream tile. The associated surface power loading can be expected to be significantly higher than the design value. In parallel gaps, on the other hand, most of the flux enters, but impinges on the side favoured by the ExB drift.

Název v anglickém jazyce

Self-consistent 2D simulations of plasma deposition in tile gaps

Popis výsledku anglicky

In order to withstand thermomechanical stress in ITER?s divertor, its armour will be castellated. Carbon layers and tritium will accumulate inside the gaps that separate the tiles. We present here the first self-consistent two-dimensional numerical studyof plasma deposition between tiles. The particle and energy deposition with respect to the depth and width of the gap are investigated for various gap widths. Scans of the inclination of the magnetic field lines and their orientation in both the perpendicular and parallel directions to the leading edge of the tiles are also performed. Due to a peculiar charge separation field, most of the ion influx is expelled from perpendicular gaps to be deposited on the leading edge of the downstream tile. The associated surface power loading can be expected to be significantly higher than the design value. In parallel gaps, on the other hand, most of the flux enters, but impinges on the side favoured by the ExB drift.

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

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2006

Kód důvěrnosti údajů

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

Název statě ve sborníku

Europhysics Conference Abstracts ECA Vol.30I (2006)

ISBN

2-914771-40-1

ISSN

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e-ISSN

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Počet stran výsledku

8

Strana od-do

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Název nakladatele

European Physical Society

Místo vydání

Frascati

Místo konání akce

Roma

Datum konání akce

19. 6. 2006

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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