3 citations · 4 across the 3 of their papers we have counts for
5 papers · 1 filter
Stretching and breaking of particles in compressible random flows
Dipankar Roy, Marco Martins Afonso, Jason R. Picardo +1
A key feature of turbulent suspensions that involve floating particles on the surface or inertial particles in the bulk is the compressibility of the effective particle-phase veloc…
Optimal transient growth in an incompressible flow past a backward-slanted step
Marco Martins Afonso, Philippe Meliga, Eric Serre
With the aim of providing a first step in the quest for a reduction of the aerodynamic drag on the rear-end of a car, we study the phenomena of separation and reattachment of an in…
Kazantsev dynamo in turbulent compressible flows
Marco Martins Afonso, Dhrubaditya Mitra, Dario Vincenzi
We consider the kinematic fluctuation dynamo problem in a flow that is random, white-in-time, with both solenoidal and potential components. This model is a generalization of the w…
Point-source dispersion of quasi-neutrally-buoyant inertial particles
Marco Martins Afonso, Sílvio M. A. Gama
We analyze the evolution of the distribution, both in the phase space and in the physical space, of inertial particles released by a spatially-localized (punctual) source and advec…
Stokes drift for inertial particles transported by water waves
G. Boffetta, M. Martins Afonso, A. Mazzino +2
We study the effect of surface gravity waves on the motion of inertial particles in an incompressible fluid. Using the multiple-scale technique, we perform an analytical calculatio…