SOLPS-ITER modeling with activated drifts for a snowflake divertor in ASDEX Upgrade.

Autor: Pan, O, Lunt, T, Wischmeier, M, Coster, D, Stroth, U, team, the ASDEX Upgrade
Předmět:
Zdroj: Plasma Physics & Controlled Fusion; Apr2020, Vol. 62 Issue 4, p1-7, 7p
Abstrakt: 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. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index