96 citations · 874 across the 31 of their papers we have counts for
16 papers · 1 filter
Investigating the magnitude and temporal localization of inertial particle mixing in turbulent channel flows
D. Perrone, J. G. M Kuerten, L. Ridolfi +1
Mixing of inertial point particles in a turbulent channel flow at Reτ = 950 is investigated by means of direct numerical simulations. We consider inertial particles, at varying Sto…
Visibility analysis of boundary layer transition
Davide Perrone, Luca Ridolfi, Stefania Scarsoglio
We study the transition to turbulence in a flat plate boundary layer by means of visibility analysis of velocity time-series extracted across the flow domain. By taking into accoun…
Coherent structures at the origin of time irreversibility in wall turbulence
Giovanni Iacobello, Subharthi Chowdhuri, Luca Ridolfi +2
Time irreversibility is a distinctive feature of non-equilibrium phenomena such as turbulent flows, where irreversibility is mainly associated with an energy cascade process. An Eu…
Network analysis of Reynolds number scaling in wall-bounded Lagrangian mixing
Davide Perrone, J. G. M Kuerten, Luca Ridolfi +1
The dispersion and mixing of passive particles in a turbulent channel flow is investigated by means of a network-based representation of their motion. We employ direct numerical si…
Large-to-small scale frequency modulation analysis in wall-bounded turbulence via visibility networks
Giovanni Iacobello, Luca Ridolfi, Stefania Scarsoglio
Scale interaction is studied in wall-bounded turbulence by focusing on the frequency modulation (FM) mechanism of large scales on small scale velocity fluctuations. Differently fro…
Blue Holes and Froude Horizons: Circular Shallow Water Profiles for Astrophysical Analogs
Amilcare Porporato, Luca Ridolfi, Lamberto Rondoni
Interesting analogies between shallow water dynamics and astrophysical phenomena have offered valuable insight from both the theoretical and experimental point of view. To help org…
A review on turbulent and vortical flow analyses via complex networks
Giovanni Iacobello, Luca Ridolfi, Stefania Scarsoglio
Turbulent and vortical flows are ubiquitous and their characterization is crucial for the understanding of several natural and industrial processes. Among different techniques to s…
Wall-induced anisotropy effects on turbulent mixing in channel flow: A network-based analysis
Davide Perrone, J. G. M. Kuerten, Luca Ridolfi +1
Turbulent mixing is studied in the Lagrangian framework with an approach based on the complex network formalism. We consider the motion of passive, noninertial particles inside a t…
Experimental investigation of vertical turbulent transport of a passive scalar in a boundary layer: statistics and visibility graph analysis
Giovanni Iacobello, Massimo Marro, Luca Ridolfi +2
The dynamics of a passive scalar plume in a turbulent boundary layer is experimentally investigated via vertical turbulent transport time-series. Data are acquired in a rough-wall…
Lagrangian network analysis of turbulent mixing
Giovanni Iacobello, Stefania Scarsoglio, J. G. M. Kuerten +1
A temporal complex network-based approach is proposed as a novel formulation to investigate turbulent mixing from a Lagrangian viewpoint. By exploiting a spatial proximity criterio…
Spatial characterization of turbulent channel flow via complex networks
Giovanni Iacobello, Stefania Scarsoglio, J. G. M. Kuerten +1
A network-based analysis of a turbulent channel flow numerically solved at is proposed as an innovative perspective for the spatial characterization of the flow field. T…
Effects of atrial fibrillation on the arterial fluid dynamics: a modelling perspective
Stefania Scarsoglio, Caterina Gallo, Luca Ridolfi
Atrial fibrillation (AF) is the most common form of arrhythmia with accelerated and irregular heart rate (HR), leading to both heart failure and stroke and being responsible for an…
Visibility graph analysis of wall turbulence time-series
Giovanni Iacobello, Stefania Scarsoglio, Luca Ridolfi
The spatio-temporal features of the velocity field of a fully-developed turbulent channel flow are investigated through the natural visibility graph (NVG) method, which is able to…
Alteration of cerebrovascular haemodynamic patterns due to atrial fibrillation: an in silico investigation
Stefania Scarsoglio, Andrea Saglietto, Matteo Anselmino +2
There has recently been growing evidence that atrial fibrillation (AF), the most common cardiac arrhythmia, is independently associated with the risk of dementia. This represents a…
Complex Networks Unveiling Spatial Patterns in Turbulence
Stefania Scarsoglio, Giovanni Iacobello, Luca Ridolfi
Numerical and experimental turbulence simulations are nowadays reaching the size of the so-called big data, thus requiring refined investigative tools for appropriate statistical a…
Computational fluid dynamics modelling of left valvular heart diseases during atrial fibrillation
Stefania Scarsoglio, Andrea Saglietto, Fiorenzo Gaita +2
Although atrial fibrillation (AF), a common arrhythmia, frequently presents in patients with underlying valvular disease, its hemodynamic contributions are not fully understood. Th…