First-principle theory-based scaling of the SOL width in limited tokamak plasmas, experimental validation, and implications for the ITER start-up(25thIAEA2014)

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

First-principle theory-based scaling of the SOL width in limited tokamak plasmas, experimental validation, and implications for the ITER start-up(25thIAEA2014)

Popis výsledku v původním jazyce

Předneseno na:25th IAEA Fusion Energy Conference,2014 The steady-state heat load onto the plasma facing components of tokamak devices depends on the SOL width, which results from a balance between plasma outflowing from the core region, turbulent transport, and losses to the divertor or limiter. Here we present a first-principle based scaling for the characteristic SOL pressure scale length. It is found that the SOL width increases with the tokamak major radius, the safety factor, and the density, whileit decreases with the toroidal magnetic field and the plasma temperature. The scaling is benchmarked against the flux-driven non-linear turbulence simulations that have been carried out with the GBS code. The theoretical scaling reveals good agreement with experimental data obtained in a number of tokamaks, including TCV, Alcator C- MOD, COMPASS, JET, and Tore Supra.

Název v anglickém jazyce

First-principle theory-based scaling of the SOL width in limited tokamak plasmas, experimental validation, and implications for the ITER start-up(25thIAEA2014)

Popis výsledku anglicky

Předneseno na:25th IAEA Fusion Energy Conference,2014 The steady-state heat load onto the plasma facing components of tokamak devices depends on the SOL width, which results from a balance between plasma outflowing from the core region, turbulent transport, and losses to the divertor or limiter. Here we present a first-principle based scaling for the characteristic SOL pressure scale length. It is found that the SOL width increases with the tokamak major radius, the safety factor, and the density, whileit decreases with the toroidal magnetic field and the plasma temperature. The scaling is benchmarked against the flux-driven non-linear turbulence simulations that have been carried out with the GBS code. The theoretical scaling reveals good agreement with experimental data obtained in a number of tokamaks, including TCV, Alcator C- MOD, COMPASS, JET, and Tore Supra.

Druh

O - Ostatní výsledky

CEP obor

BL - Fyzika plasmatu a výboje v plynech

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

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