Turbulent relaxation patterns in SOL plasma
Abstract Relaxations of localized over-density in a plane transverse to the magnetic field are numerically investigated under the effect of drift-wave and interchange drives in SOL conditions. Such a controlled departure from thermodynamic equilibrium allows the investigation of fundamental processes at play in cross-field transport. Interchange instabilities generate ballistic outward radial flux with low amplitude zonal flow patterns, whereas drift-wave instabilities result in symmetric radial flux with large amplitude zonal flow patterns. When both instabilities are considered, the combined effects tend to favor drift-waves, leading to a weaker outward flux with larger zonal flow patterns.
Authors
- D. Zarzoso (ORCID: https://orcid.org/0000-0002-7220-8092)
- Y Sarazin
- R Varennes (ORCID: https://orcid.org/0000-0001-7509-7810)
- Olivier Panico (ORCID: https://orcid.org/0000-0002-2322-2306)
- Ph. Ghendrih
- G. Dif‐Pradalier (ORCID: https://orcid.org/0000-0003-4869-7049)
- V. Grandgirard
- É. Serre (ORCID: https://orcid.org/0000-0002-3174-7727)
Institutions
- Nanyang Technological University (SG)
- Commissariat à l'Énergie Atomique et aux Énergies Alternatives (FR)
- CEA Cadarache (FR)
- Château Gombert (FR)
- Institut de Recherche sur la Fusion par confinement Magnétique (FR)
- Laboratoire de Physique des Plasmas (FR)
Publication Details
- Journal
- Plasma Physics and Controlled Fusion
- Published
- 2024-08-16
- DOI
- https://doi.org/10.1088/1361-6587/ad705c
- Citations
- 1
- Primary Topic
- Magnetic confinement fusion research
- Type
- article
- Field-Weighted Citation Impact
- 0.66
Funders
- EUROfusion
- European Commission
- National Research Foundation
- National Research Foundation Singapore
- Euratom Research and Training Programme