EDGE2D-EIRENE simulations of the impact of poloidal flux expansion on the radiative divertor performance in JET
Copyright policy )EDGE2D-EIRENE simulations of the impact of poloidal flux expansion on the radiative divertor performance in JET
In the past at JET, with the MkI divertor, a systematic study of the influence of X-point height and poloidal flux expansion has been conducted [1,2] showing minor differences in the radiation distribution, whereas in [3] experiment and simulations have shown enhancement of detachment as the flux expansion was increased. More recently at JET, equipped with the ITER-like wall (ILW), radiative seeded scenarios have been studied and a maximum radiation fraction 75% has been achieved. EDGE2D-EIRENE [4–6] simula- tions [7,8] have already shown that the divertor heat fluxes can be reduced with N2 injection, qualita- tively consistent with experimental observations [9] , by adjusting the impurity injection rate to reproduce the measured divertor radiation. In this paper we will present edge predictive simulations on the assess- ment of effects of poloidal flux expansion and recycling on radiation distribution and X-point peaking on JET-ILW nitrogen seeded plasmas. EURATOM 633053
Radiation, Nitrogen, TK9001-9401, Power exhaust, Impurity seeding, Fusion, Plasma and Space Physics, EDGE2D, Fusion, plasma och rymdfysik, JET, Power exhaust; Radiation; EDGE2D; EIRENE; JET; Nitrogen; Impurity seeding, EIRENE, Nuclear engineering. Atomic power, SDG 7 - Affordable and Clean Energy
Radiation, Nitrogen, TK9001-9401, Power exhaust, Impurity seeding, Fusion, Plasma and Space Physics, EDGE2D, Fusion, plasma och rymdfysik, JET, Power exhaust; Radiation; EDGE2D; EIRENE; JET; Nitrogen; Impurity seeding, EIRENE, Nuclear engineering. Atomic power, SDG 7 - Affordable and Clean Energy
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