Symmetries of the Electromagnetic Turbulence in a Tokamak Edge
Fuente:
arXiv
Gespeichert in:
| Hauptverfasser: | , |
|---|---|
| Format: | Preprint |
| Veröffentlicht: |
2024
|
| Schlagworte: | |
| Online-Zugang: | |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| _version_ | 1866911939174596608 |
|---|---|
| author | Montani, Giovanni Moretti, Fabio |
| author_facet | Montani, Giovanni Moretti, Fabio |
| contents | We construct the low-frequency formulation of the turbulence characterizing the plasma in a Tokamak edge. Under rather natural assumptions we demonstrate that, even in the presence of poloidal magnetic fluctuations, it is possible to deal with a reduced model for the turbulence dynamics. This model relies on a single equation for the electric potential, from which all the physical turbulent properties can be calculated. The main result of the present analysis concerns the existence of a specific Fourier branch for the dynamics which demonstrate the attractive character of the two-dimensional turbulence with respect to non-axisymmetric fluctuations. The peculiar nature of this instability, affecting the non-axially symmetric modes, is discussed in some detail, by recovering two different physical regimes. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2407_01241 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Symmetries of the Electromagnetic Turbulence in a Tokamak Edge Montani, Giovanni Moretti, Fabio Plasma Physics Fluid Dynamics We construct the low-frequency formulation of the turbulence characterizing the plasma in a Tokamak edge. Under rather natural assumptions we demonstrate that, even in the presence of poloidal magnetic fluctuations, it is possible to deal with a reduced model for the turbulence dynamics. This model relies on a single equation for the electric potential, from which all the physical turbulent properties can be calculated. The main result of the present analysis concerns the existence of a specific Fourier branch for the dynamics which demonstrate the attractive character of the two-dimensional turbulence with respect to non-axisymmetric fluctuations. The peculiar nature of this instability, affecting the non-axially symmetric modes, is discussed in some detail, by recovering two different physical regimes. |
| title | Symmetries of the Electromagnetic Turbulence in a Tokamak Edge |
| topic | Plasma Physics Fluid Dynamics |
| url | https://arxiv.org/abs/2407.01241 |