Application of a two-fluid two-point model to SolEdge2D-EIRENE simulations of TCV H-mode plasma

The edge and scrape-off layer (SOL) plasma of the inter-ELM phase of an H-mode discharge from the TCV tokamak is modeled with the transport code SolEdge2D-EIRENE (Bufferand et al. Nuclear Fusion 55 (2015)). The numerical simulations, in presence and in absence of C impurities sputtered from the first wall, are presented and compared with the experiments, finding an overall good agreement. The application of the standard two-point model to the simulation results leads to an apparent momentum gain along the divertor leg. A two-fluid two-point model featuring thermally decoupled ions and electrons is introduced and applied to the simulation results, overcoming this apparent discrepancy.


Published in:
Nuclear Materials and Energy, 18, 29-34
Year:
2019
Note:
Under a Creative Commons license: https://creativecommons.org/licenses/by-nc-nd/4.0/
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 Record created 2019-05-07, last modified 2019-06-17

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