Journal Article

FZJ-2017-03420

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Scaling for the SOL/separatrix χ ⊥ following from the heuristic drift model for the power scrape-off layer width

Huber, A. (Corresponding author)FZJ* ; Chankin, A. V.

2017
IOP Publ. Bristol

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Please use a persistent id in citations: http://hdl.handle.net/2128/25407  doi:10.1088/1361-6587/aa6ab9

Abstract: A simple two-point representation of the tokamak scrape-off layer (SOL) in the conduction limited regime, based on the parallel and perpendicular energy balance equations in combination with the heat flux width predicted by a heuristic drift-based model, was used to derive a scaling for the cross-field thermal diffusivity ${\chi }_{\perp }.$ For fixed plasma shape and neglecting weak power dependence indexes 1/8, the scaling ${\chi }_{\perp }\propto {P}_{{\rm{S}}{\rm{O}}{\rm{L}}}/(n{B}_{\theta }{R}^{2})$ is derived.

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Contributing Institute(s):

1. Plasmaphysik (IEK-4)

Research Program(s):

1. 174 - Plasma-Wall-Interaction (POF3-174) (POF3-174)

Appears in the scientific report 2017

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Database coverage:
; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; IF < 5 ; JCR ; National-Konsortium ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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