Validation of EDGE2D-EIRENE and DIVIMP for W SOL transport in JET
Nuclear Materials and Energy(2020)
摘要
Tungsten sputtering rates and density profiles predicted using the edge plasma codes EDGE2D-EIRENE and DIVIMP are found to agree within a factor of 4 with measurements of neutral and singly-ionized W spectral line emission in the JET low-field side (LFS) divertor, and within a factor of 2 with SXR, VUV, and bolometric calculations of the W density in the main plasma. The edge plasma W predictions are extended to the core plasma using JINTRAC integrated core-edge modelling. Prompt redeposition of W is identified as the primary reason for the discrepancy between predicted and measured W emission in the divertor. The studied plasmas include attached divertor conditions in L-mode and type-I ELMy H-mode plasmas typical for JET.
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关键词
Impurity transport,Tungsten,Scrape-off layer,Code validation,Joint European Torus,Spectroscopy,Fluid simulation
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