2 papers
physics.flu-dyn2026
Minimum-enstrophy solutions in topographic quasi-geostrophic flow on the rotating sphere
Sagy Ephrati, Erik Jansson
The minimum-enstrophy theory of Bretherton and Haidvogel postulates that two-dimensional turbulent systems evolve to a state that minimises enstrophy at a fixed energy level. We ex…
math.NA2025
Diffusive behavior of transport noise on
Sagy Ephrati, Erik Jansson, Andrea Papini
We investigate theoretically and numerically transport noise-induced diffusion in flows on the sphere. Previous analysis on the torus demonstrated that suitably chosen transport no…