16 citations · 54 across the 10 of their papers we have counts for
10 papers · 1 filter
Evolution of inertial particle clustering in decaying turbulence
Martín Obligado, Sofía Angriman
Inertial particle dynamics in turbulence are commonly interpreted in terms of the instantaneous particle Stokes number, as supported by studies in statistically stationary homogene…
Ice melting in an oscillatory flow
Sofía Angriman, Tobias de Buck, Roberto Verzicco +1
We investigate the melting dynamics of an ice disk subjected to an external oscillatory flow using two-dimensional direct numerical simulations, in the absence of buoyancy, varying…
Collective effects of neighbouring melting ice objects
Sofía Angriman, Detlef Lohse, Roberto Verzicco +1
We present a study on the melting dynamics of neighbouring ice bodies by means of idealised simulations, focusing on collective effects, with the goal of obtaining fundamental insi…
Active grid turbulence anomalies through the lens of physics informed neural networks
Sofía Angriman, Sarah E. Smith, Patricio Clark di Leoni +3
Active grids operated with random protocols are a standard way to generate large Reynolds number turbulence in wind and water tunnels. But anomalies in the decay and third-order sc…
Turbulence unsteadiness drives extreme clustering
Florencia Zapata, Sofía Angriman, Amélie Ferran +3
We show that the unsteadiness of turbulence has a drastic effect on turbulence parameters and in particle cluster formation. To this end we use direct numerical simulations of part…
Generation of Turbulent States using Physics-Informed Neural Networks
Sofia Angriman, Pablo Cobelli, Pablo Mininni +2
When modelling turbulent flows, it is often the case that information on the forcing terms or the boundary conditions is either not available or overly complicated and expensive to…
Clustering in laboratory and numerical turbulent swirling flows
Sofía Angriman, Amélie Ferran, Florencia Zapata +3
We study the three-dimensional clustering of velocity stagnation points, of nulls of the vorticity and of the Lagrangian acceleration, and of inertial particles in turbulent flows…
Multi-time structure functions and the Lagrangian scaling of turbulence
Sofía Angriman, Pablo D. Mininni, Pablo J. Cobelli
We define and characterize multi-time Lagrangian structure functions using data stemming from two swirling flows with mean flow and turbulent fluctuations: A Taylor-Green numerical…
Broken mirror symmetry of tracer's trajectories in turbulence
Sofía Angriman, Pablo J. Cobelli, Mickaël Bourgoin +3
Topological properties of physical systems play a crucial role in our understanding of nature, yet their experimental determination remains elusive. We show that the mean helicity,…
Velocity and acceleration statistics in particle-laden turbulent swirling flows
Sofía Angriman, Pablo D. Mininni, Pablo J. Cobelli
We present a comparison of different particles' velocity and acceleration statistics in two paradigmatic turbulent swirling flows: the von Kármán flow in a laboratory experiment, a…