34 citations · 138 across the 10 of their papers we have counts for
6 papers · 1 filter
Three dimensional chaotic advection by mixed layer baroclinic instabilities
Daniel Mukiibi, Gualtiero Badin, Nuno Serra
Three dimensional (3D) Finite Time Lyapunov Exponents (FTLEs) are computed from numerical simulations of a freely evolving mixed layer (ML) front in a zonal channel undergoing baro…
Nonlinear stratospheric variability: multifractal detrended fluctuation analysis and singularity spectra
Gualtiero Badin, Daniela I. V. Domeisen
Characterising the stratosphere as a turbulent system, temporal fluctuations often show different correlations for different time scales as well as intermittent behaviour that cann…
On the role of non-uniform stratification and short-wave instabilities in three-layer quasi-geostrophic turbulence
Gualtiero Badin
The role of short-wave instabilities on geostrophic turbulence is studied in a simplified model consisting of three layers in the quasi-geostrophic approximation. The linear stabil…
Hydrodynamic Nambu Brackets derived by Geometric Constraints
Richard Blender, Gualtiero Badin
A geometric approach to derive the Nambu brackets for ideal two-dimensional (2D) hydrodynamics is suggested. The derivation is based on two-forms with vanishing integrals in a peri…
A study of surface semi-geostrophic turbulence: freely decaying dynamics
Francesco Ragone, Gualtiero Badin
In this study we give a characterization of semi-geostrophic turbulence by performing freely decaying simulations for the case of constant uniform potential vorticity, a set of equ…
Representation of Viscous Dissipation in 2D Fluid Dynamics as a Symplectic Process and its Metriplectic Representation
Richard Blender, Gualtiero Badin
Dissipation can be represented in Hamiltonian mechanics in an extended phase space as a symplectic process. The method uses an auxiliary variable which represents the excitation of…