A study of the atomic and molecular power loss terms in EDGE2D-EIRENE simulations of JET ITER-like wall L-mode discharges

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openAccess

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Journal Title

Journal ISSN

Volume Title

A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Date

2017-08-01

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Mcode

Degree programme

Language

en

Pages

7
924-930

Series

Nuclear Materials and Energy, Volume 12

Abstract

A discrepancy in the divertor radiated powers between EDGE2D-EIRENE simulations and JET-ILW experiments employing a set of NBI-heated L-mode discharges with step-wise density variation is investigated. The analysis shows the importance of the contributions from the deuterium fuel to the divertor radiated power, making these discharges ideal for this study. Molecular radiation losses from D2 molecules have been included for the first time and the present simulations allow the atomic and molecular electron power loss terms in EIRENE to be independently scaled in order to understand their importance in determining the simulated electron temperatures and distribution of radiated power.

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Keywords

Divertor diagnostic, Divertor modelling, EDGE2D, ILW, JET

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Citation

Lawson, K D, Groth, M, Harting, D, Menmuir, S, Reiter, D, Brezinsek, S, Corrigan, G, Drewelow, P, Maggi, C F, Meigs, A G, Simpson, J, Stamp, M F, Wiesen, S & Contributors 2017, ' A study of the atomic and molecular power loss terms in EDGE2D-EIRENE simulations of JET ITER-like wall L-mode discharges ', Nuclear Materials and Energy, vol. 12, pp. 924-930 . https://doi.org/10.1016/j.nme.2017.04.015