First result of edge impurity transport with EMC3-EIRENE code in HL-2A plasmas

Understanding of edge impurity transport is essentially important for impurity control and detached divertor operation, which are the key points to realize high-performance plasma. The EMC3-EIRENE simulation code is focused on the edge plasma transport and successfully applied to many machines to resolve the transport with 3-dimentional magnetic structure. The RMP coils have been installed in HL-2A, therefore it is necessary to apply the EMC3-EIRENE code to HL-2A plasmas. The computational grid is firstly generated for each magnetic configuration of interest as the input of EMC3-EIRENE. The edge temperature and density profiles measured by probe system are used for adjusting the transport coefficients of background plasmas. Good agreement in ohmic phase is obtained with D_⊥= 0.3m²s⁻¹ and χ_⊥ = 1.5m²s⁻¹. The profile of CIV line emission (312.4Å: 1s²2s - 1s²3p) obtained from simulation is compared with experimental result measured by the space-resolved extreme ultraviolet spectrometer. Analysis shows that the thermal force is dominated in ECRH heating plasma instead of the dominant friction force in ohmic heating plasma, resulting the enhancement of CIV intensity in ECRH heating phase. The detailed analysis on carbon impurity transport based on EMC3-EIRENE code will be presented.