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.
|Publication status||Published - 2019|
|MoE publication type||Not Eligible|
|Event||European Physical Society Conference on Plasma Physics - Milan, Italy|
Duration: 8 Jul 2019 → 12 Jul 2019
Conference number: 46
|Conference||European Physical Society Conference on Plasma Physics|
|Period||08/07/2019 → 12/07/2019|