Numerical modelling of an enhanced perpendicular transport regime in the scrape-off layer of ASDEX Upgrade

Abstract A desirable scenario for future fusion devices is one in which dissipative processes the scrape-off layer (SOL) are maximized, aiming to detach divertor plasma. The access such a regime current thought be correlated increase of perpendicular particle transport SOL. In this work we investigated numerically how increasing globally affects SOL plasma through SOLPS-ITER code package. For modelled L-mode discharge, performed at ASDEX Upgrade tokamak, trying obtain most accurate fit experimental data outer midplane. Studying solutions and analyzing resulting momentum power balances allowed characterize enhancing leads experimentally observed phenomena, i.e. formation density shoulder midplane partial detachment results suggest that strong losses caused by able explain qualitatively discharge. concurrent enhanced ionization neutrals from recycling, triggered an radial energy SOL, can invoked as cause formation.