Impact of tungsten charge state bundling on scrape-off layer transport simulations in JET L-mode

Research output: Contribution to conferencePaperScientificpeer-review

Abstract

The bundling of the 74 tungsten ion charge states into 6 fluid species in the coupled multi-fluid plasma/kinetic neutral code EDGE2D-EIRENE is shown to decrease the predicted average tungsten charge in the JET main chamber scrape-off layer by up to 40%, compared to mutually consistent predictions using the Monte Carlo impurity transport code DIVIMP and 22 tungsten fluid species in EDGE2D-EIRENE. The tungsten concentrations predicted by DIVIMP in the pedestal region are consistently ~50% higher than by EDGE2DEIRENE with 6 tungsten fluids under attached divertor conditions, whereas under partially detached conditions the stochastic errors exceed the systematic disagreement between the two codes.

Original languageEnglish
Publication statusPublished - 2019
MoE publication typeNot Eligible
EventEuropean Physical Society Conference on Plasma Physics - Milan, Italy
Duration: 8 Jul 201912 Jul 2019
Conference number: 46

Conference

ConferenceEuropean Physical Society Conference on Plasma Physics
Abbreviated titleEPS
CountryItaly
CityMilan
Period08/07/201912/07/2019

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