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P: Fachverband Plasmaphysik
P 11: Poster I
P 11.20: Poster
Wednesday, March 22, 2023, 14:00–15:30, HSZ EG
Comparison of HERMES-2 and EMC3 for the SOL transport of Wendelstein 7-X — •David Bold1, Brendan Shanahan1, Felix Reimold1, and Benjamin Dudson2 — 1Max-Planck-Institut für Plasmaphysik, Greifswald, Germany — 2Lawrence Livermore National Laboratory, Livermore, California, USA
The EMC3-EIRENE code is a well established tool for modelling of the scrape-off layer (SOL) of stellerator devices like Wendelstein 7-X. However EMC3 does not include drifts, which are expected to play a significant contribution to the transport in the SOL.
HERMES-2 is a hot-ion drift reduced SOL-model using the BOUT++ framework. A recent addition to BOUT++ is the inclusion of the flux coordinate independent (FCI) scheme for fully 3D geometries. The HERMES-2 model is currently modified to be able to handle the geometry of a stellerator using the FCI method. As a first step the results of the two codes are compared when solving the geometry of Wendelstein 7-X. For a direct comparison, only the terms in Hermes-2 which are similar to those found in EMC3 are used.