NDLI: SOLPS-ITER modelling of ITER edge plasma with drifts and currents

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SOLPS-ITER modelling of ITER edge plasma with drifts and currents

Content Provider	Scilit
Author	Kaveeva, Elizaveta Rozhansky, Vladimir A. Senichenkov, Ilya Y. Sytova, Elizaveta Veselova, Irina Voskoboynikov, Sergey P. Bonnin, Xavier Pitts, Richard A. Kukushkin, Andrei S. Wiesen, Sven Coster, David P.
Copyright Year	2020
Description	Journal: Nuclear Fusion Using the new version of the SOLPS plasma boundary code package, SOLPS-ITER, the paper presents the first ever simulations of the ITER burning baseline H-mode edge plasma with drifts and currents activated. Neon (Ne) seeded discharges for divertor power dissipation are considered. The results for divertor and scrape-off layer (SOL) parameters with and without drifts are compared, both for the SOLPS-ITER simulations and against the earlier SOLPS-4.3 modelling (which did not include a drift description) constituting the bulk of the existing ITER divertor simulation database. Whereas the drift effect on the equatorial midplane (main chamber) density and temperature profiles is moderate, drifts increase the peak heat flow to the outer divertor target. This effect is more pronounced for regimes with low sub-divertor neutral pressure, when even drift-free SOLPS4.3 simulations find strong out-in target power asymmetries. An important conclusion is thus that if ITER operates as expected with partially detached divertor targets, drifts should not influence the power handling, but that in the case of divertor reattachment, they will act to worsen the target loading, increasing the need for vigilance in detachment control. Comparing SOLPS-4.3 and SOLPS-ITER results for the key peak target heat flux versus sub-divertor neutral pressure operating domain, SOLPS-ITER with drifts predicts a narrower operational window for the divertor pressure.
Related Links	https://iopscience.iop.org/article/10.1088/1741-4326/ab73c1/pdf
ISSN	00295515
e-ISSN	17414326
DOI	10.1088/1741-4326/ab73c1
Journal	Nuclear Fusion
Issue Number	4
Volume Number	60
Language	English
Publisher	IOP Publishing
Publisher Date	2020-02-07
Access Restriction	Open
Subject Keyword	Journal: Nuclear Fusion Nuclear Energy and Engineering Solps Iter Free Solps4.3 Divertor Simulation
Content Type	Text
Resource Type	Article
Subject	Nuclear and High Energy Physics Condensed Matter Physics

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