4 papers · 1 filter
A note on the lower boundary condition for Ekman flows
Christian Puntini, Luigi Roberti
We show that the assumption of a stress-free boundary condition at a finite intermediate depth, namely, at the bottom of the Ekman layer, in the analysis of wind-driven ocean flows…
On large-scale wind-drift ocean currents: An asymptotic approach in spherical coordinates
Christian Puntini, Luigi Roberti, Eduard Stefanescu
Starting from the Navier--Stokes equations in rotating spherical coordinates with depth-varying density and eddy viscosity, we derive an asymptotic model describing non-equatorial…
Nonlinear Dynamics of Wind-Drift Currents at Mid-Latitudes
Christian Puntini
Starting from the Navier-Stokes equation in the -plane approximation, we provide an exact and explicit solution of the governing equations at leading order for fluid flows in th…
On the modeling of nonlinear wind-induced ice-drift ocean currents at the North Pole
Christian Puntini
Starting from the governing equations for geophysical flows, by means of a thin-shell approximation and a tangent plane approximation, we derive the equations describing, at leadin…