Turbulent transport regimes in the presence of an X-point magnetic configuration
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arXiv
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| Autori principali: | , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866916580782243840 |
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| author | Moretti, Fabio Carlevaro, Nakia Cianfrani, Francesco Montani, Giovanni |
| author_facet | Moretti, Fabio Carlevaro, Nakia Cianfrani, Francesco Montani, Giovanni |
| contents | We analyze the transport properties of the two-dimensional electrostatic turbulence characterizing the edge of a Tokamak device from the study of test particles motion (passive fluid tracers) following the EXB drift. We perform statistical tests on the tracer population in order to assess both the magnitude and the main features of transport. The role of other physical properties, such as viscosity and inverse energy cascade in the spectrum, is also considered. We outline that large scale eddies are responsible for greater transport coefficients, while the presence of an X-point magnetic field reduces the mean free path of the particles, however generating a larger outliers population with respect to a Gaussian profile. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2407_18634 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Turbulent transport regimes in the presence of an X-point magnetic configuration Moretti, Fabio Carlevaro, Nakia Cianfrani, Francesco Montani, Giovanni Plasma Physics We analyze the transport properties of the two-dimensional electrostatic turbulence characterizing the edge of a Tokamak device from the study of test particles motion (passive fluid tracers) following the EXB drift. We perform statistical tests on the tracer population in order to assess both the magnitude and the main features of transport. The role of other physical properties, such as viscosity and inverse energy cascade in the spectrum, is also considered. We outline that large scale eddies are responsible for greater transport coefficients, while the presence of an X-point magnetic field reduces the mean free path of the particles, however generating a larger outliers population with respect to a Gaussian profile. |
| title | Turbulent transport regimes in the presence of an X-point magnetic configuration |
| topic | Plasma Physics |
| url | https://arxiv.org/abs/2407.18634 |