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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Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2017-08-01
Major/Subject
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.
Description
Keywords
Divertor diagnostic, Divertor modelling, EDGE2D, ILW, JET
Other note
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