EDGE2D modelling of JET and ITER including the combined effect of guiding centre drifts and an edge transport barrier

Abstract Code predictions of parameters in the pedestal region of high power H-mode discharges on JET have been performed using the EDGE2D code including (i) self-physically and chemically sputtered carbon impurities, (ii) guiding centre drifts with realistic core boundary conditions, and (iii) an imposed edge transport barrier (ETB). For a transport barrier with a minimum D ⊥ min ( D ⊥ min ) - 1 / 2 , which is not modified by the inclusion of drifts. Reasonably good agreement with experimental measurements on JET is achieved for a moderate ETB strength of D⊥ = 0.4 m2 s−1. Preliminary results for ITER are discussed.