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physics.flu-dyn2024
Spectrum correction in Ekman-Navier-Stokes turbulence
V. J. Valadão, G. Boffetta, F. De Lillo +2
The presence of a linear friction drag affects significantly the dynamics of turbulent flows in two-dimensions. At small scales, it induces a correction to the slope of the energy…
physics.flu-dyn2024
Non-equilibrium fluctuations of the direct cascade in Surface Quasi Geostrophic turbulence
V. J. Valadão, T. Ceccotti, G. Boffetta +1
We study the temporal fluctuations of the flux of surface potential energy in Surface Quasi-Geostrophic (SQG) turbulence. By means of high-resolution, direct numerical simulations…