Edge ICRF simulations in 3D geometry: From MHD equilibrium to coupling determination

ASDEX Upgrade Team, EUROfusion MST1 Team

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

We present in this work a consistent numerical scheme that allows the computation of 3D magnetic fields a nd 3D density profiles and their usage in ion cyclotron range of frequencies (ICRF) coupling simulations. We first utilize the PARVMEC code to compute the 3D free-boundary plasma equilibrium in the ideal magnetohydrodynamic (MHD) approximation. Since the PARVMEC solution is only defined within the last closed flux surface (LCFS), the magnetic field domain is extended to the scrape-offlayer (SOL) via the BMW code, which computes a divergence-free magnetic field solution a rising from the external conductors’ vacuum field and the PARVMEC flux surface currents. This magnetic reconstruction is then used in the EMC3-EIRENE transport code in order to compute 3D density profiles. In the last step, the RAPLICASOL code is utilized to compute the ICRF antenna S-matrices resulting from the 3D density profiles. We exemplify this scheme for the ASDEX Upgrade tokamak. A new implementation of a curved model for the ASDEX Upgrade ICRF 2-strap antenna in RAPLICASOL allows simulations in realistic geometry, without any coordinate transformations.

Original languageEnglish
Title of host publication23rd Topical Conference on Radiofrequency Power in Plasmas
EditorsPaul T. Bonoli, Robert I. Pinsker, Xiaojie Wang
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735420137
DOIs
StatePublished - Sep 16 2020
Event23rd Topical Conference on Radiofrequency Power in Plasmas - Hefei, China
Duration: May 14 2019May 17 2019

Publication series

NameAIP Conference Proceedings
Volume2254
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference23rd Topical Conference on Radiofrequency Power in Plasmas
Country/TerritoryChina
CityHefei
Period05/14/1905/17/19

Funding

This work has been carried out within the framework of the EUROfusion Consortium and has received funding from the Euratom research and training program 2014-2018 and 2019-2020 under grant agreement No 633053. The views and opinions expressed herein do not necessarily reflect those of the European Commission.

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