SOLPS-ITER modeling with activated drifts for a snowflake divertor in ASDEX Upgrade
Open Access
- 28 January 2020
- journal article
- research article
- Published by IOP Publishing in Plasma Physics and Controlled Fusion
- Vol. 62 (4), 045005
- https://doi.org/10.1088/1361-6587/ab7108
Abstract
We report on the first SOLPS-ITER simulations of a low-field side snowflake minus (LFS SF-) divertor configuration with drifts fully activated in ASDEX Upgrade. Compared to a reference case without drifts, the simulation in normal toroidal magnetic field configuration (B×∇B points to the primary X-point) shows a larger low-field-side/high-field-side asymmetry, an enhanced radial cross field transport, as well as a flux redistribution between the primary and secondary strike points. Although small compared to the total input power, power is found even on a strike point magnetically disconnected from the outer mid-plane, which is hard to explain by purely diffusive transport.Keywords
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