Emergent turbulence and coarsening arrest in active-spinner fluids
Fuente:
arXiv
Gespeichert in:
| Hauptverfasser: | , , |
|---|---|
| Format: | Preprint |
| Veröffentlicht: |
2025
|
| Schlagworte: | |
| Online-Zugang: | |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| _version_ | 1866909535134810112 |
|---|---|
| author | Maji, Biswajit Padhan, Nadia Bihari Pandit, Rahul |
| author_facet | Maji, Biswajit Padhan, Nadia Bihari Pandit, Rahul |
| contents | We uncover activity-driven crossover from phase separation to a new turbulent state in a two-dimensional system of counter-rotating spinners. We study the statistical properties of this active-rotor turbulence using the active-rotor Cahn-Hilliard-Navier-Stokes model, and show that the vorticity $ω\propto ϕ$, the scalar field that distinguishes regions with different rotating states. We explain this intriguing proportionality theoretically, and we characterize power-law energy and concentration spectra, intermittency, and flow-topology statistics. We suggest biological implications of such turbulence. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_03843 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Emergent turbulence and coarsening arrest in active-spinner fluids Maji, Biswajit Padhan, Nadia Bihari Pandit, Rahul Fluid Dynamics Soft Condensed Matter We uncover activity-driven crossover from phase separation to a new turbulent state in a two-dimensional system of counter-rotating spinners. We study the statistical properties of this active-rotor turbulence using the active-rotor Cahn-Hilliard-Navier-Stokes model, and show that the vorticity $ω\propto ϕ$, the scalar field that distinguishes regions with different rotating states. We explain this intriguing proportionality theoretically, and we characterize power-law energy and concentration spectra, intermittency, and flow-topology statistics. We suggest biological implications of such turbulence. |
| title | Emergent turbulence and coarsening arrest in active-spinner fluids |
| topic | Fluid Dynamics Soft Condensed Matter |
| url | https://arxiv.org/abs/2503.03843 |