Hidden symmetry in passive scalar advected by 2D Navier-Stokes turbulence
Fuente:
arXiv
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| Autori principali: | , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| Soggetti: | |
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| _version_ | 1866913796238344192 |
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| author | Calascibetta, Chiara Biferale, Luca Bonaccorso, Fabio Cencini, Massimo Mailybaev, Alexei A. |
| author_facet | Calascibetta, Chiara Biferale, Luca Bonaccorso, Fabio Cencini, Massimo Mailybaev, Alexei A. |
| contents | Here we show that passive scalars possess a hidden scaling symmetry when considering suitably rescaled fields. Such a symmetry implies (i) universal probability distribution for scalar multipliers and (ii) Perron-Frobenius scenario for the anomalous scaling of structure functions. We verify these predictions with high resolution simulations of a passive scalar advected by a 2D turbulent flow in inverse cascade. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_11616 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Hidden symmetry in passive scalar advected by 2D Navier-Stokes turbulence Calascibetta, Chiara Biferale, Luca Bonaccorso, Fabio Cencini, Massimo Mailybaev, Alexei A. Fluid Dynamics Here we show that passive scalars possess a hidden scaling symmetry when considering suitably rescaled fields. Such a symmetry implies (i) universal probability distribution for scalar multipliers and (ii) Perron-Frobenius scenario for the anomalous scaling of structure functions. We verify these predictions with high resolution simulations of a passive scalar advected by a 2D turbulent flow in inverse cascade. |
| title | Hidden symmetry in passive scalar advected by 2D Navier-Stokes turbulence |
| topic | Fluid Dynamics |
| url | https://arxiv.org/abs/2504.11616 |