65 citations · 111 across the 18 of their papers we have counts for
20 papers
On the hydrodynamic behaviour of the immersed boundary -- lattice Boltzmann method for wetting problems
Elisa Bellantoni, Fabio Guglietta, Andreas Demou +6
We study the hydrodynamic behaviour of a mesoscale numerical model for wetting dynamics based on the immersed boundary - lattice Boltzmann (IBLB) method. This IBLB model features a…
A numerical study on plasma acceleration processes with ion dynamics at the sub-nanosecond timescale
G. Parise, A. Cianchi, M. Galletti +5
Plasma wakefield acceleration is a groundbreaking technique for accelerating particles, capable of sustaining gigavolt-per-meter accelerating fields. Understanding the physical mec…
Thermal wakefield structure in plasma acceleration processes: insights from fluid models and PIC simulations
Daniele Simeoni, Andrea Renato Rossi, Gianmarco Parise +2
We focus on the process of plasma acceleration in the presence of non-negligible thermal effects, wherein a driver of relativistic electrons perturbs a warm neutral plasma and gene…
A reduced model for droplet dynamics with interfacial viscosity
Fabio Guglietta, Diego Taglienti, Mauro Sbragaglia
We propose an extension of the phenomenological Maffettone-Minale (MM) model (P.L. Maffettone and M. Minale, J. Non-Newton. Fluid Mech. 78, 227-241 (1998)) to describe the time-dep…
A note on thermal effects in non-linear models for plasma-based acceleration
D. Simeoni, G. Parise, A. R. Rossi +3
We investigate the impact of a non-negligible background temperature on relativistic plasma wake-fields generated when a beam of charged particles passes through a neutral plasma a…
Lagrangian analysis of turbulent blood flow in the human left heart
Fabio Guglietta, Martino Andrea Scarpolini, Francesco Viola +1
We present a Lagrangian analysis of turbulent blood flow in the human left heart using high-fidelity simulations based on a patient-specific anatomical model. Leveraging a fully co…
Deformation of ellipsoidal droplets in homogeneous and isotropic turbulence
Fabio Guglietta, Diego Taglienti, Mauro Sbragaglia
We study the statistics of deformation of neutrally buoyant droplets in homogeneous isotropic turbulence (HIT), wherein the characteristic droplet size is smaller than the char…
Hemodynamic effects of intra- and supra- deployment locations for a bioprosthetic aortic valve
Martino Andrea Scarpolini, Giovanni Vagnoli, Fabio Guglietta +2
Aortic valve replacement is a key surgical procedure for treating aortic valve pathologies, such as stenosis and regurgitation. The precise placement of the prosthetic valve relati…
Immersed boundary - lattice Boltzmann method for wetting problems
Elisa Bellantoni, Fabio Guglietta, Francesca Pelusi +5
We develop a mesoscale computational model to describe the interaction of a droplet with a solid. The model is based on the hybrid combination of the immersed boundary and the latt…
Thermal fluid closures and pressure anisotropies in numerical simulations of plasma wakefield acceleration
Daniele Simeoni, Andrea Renato Rossi, Gianmarco Parise +2
We investigate the dynamics of plasma-based acceleration processes with collisionless particle dynamics and non negligible thermal effects. We aim at assessing the applicability of…
Analytical prediction for the steady-state behavior of a confined drop with interface viscosity under shear flow
Fabio Guglietta, Francesca Pelusi
The steady-state behavior of a single drop under shear flow has been extensively investigated in the limit of small deformation and negligible inertia effects. In this work, we com…
Droplet dynamics in homogeneous isotropic turbulence with the immersed boundary-lattice Boltzmann method
Diego Taglienti, Fabio Guglietta, Mauro Sbragaglia
We develop a numerical method for simulating the dynamics of a droplet immersed in a generic time-dependent velocity gradient field. This approach is grounded on the hybrid couplin…
Lattice Boltzmann method for warm fluid simulations of plasma wakefield acceleration
Daniele Simeoni, Gianmarco Parise, Fabio Guglietta +4
A comprehensive characterization of lattice Boltzmann (LB) schemes to perform warm fluid numerical simulations of particle wakefield acceleration (PWFA) processes is discussed in t…
A sharp interface approach for wetting dynamics of coated droplets and soft particles
Francesca Pelusi, Fabio Guglietta, Marcello Sega +2
The wetting dynamics of liquid particles, from coated droplets to soft capsules, holds significant technological interest. Motivated by the need to simulate liquid metal droplet wi…
Suspensions of viscoelastic capsules: effect of membrane viscosity on transient dynamics
Fabio Guglietta, Francesca Pelusi, Marcello Sega +2
Membrane viscosity is known to play a central role in the transient dynamics of isolated viscoelastic capsules by decreasing their deformation, inducing shape oscillations and redu…
A reduced model for droplet dynamics in shear flows at finite capillary numbers
Diego Taglienti, Fabio Guglietta, Mauro Sbragaglia
We propose an extension of the Maffettone-Minale (MM) model to predict the dynamics of an ellipsoidal droplet in a shear flow. The parameters of the MM model are traditionally retr…
Lattice Boltzmann simulations of Plasma Wakefield Acceleration
Gianmarco Parise, Alessandro Cianchi, Alessio Del Dotto +3
We explore a novel simulation route for Plasma Wakefield Acceleration (PWFA) by using the computational method known as the Lattice Boltzmann Method (LBM). LBM is based on a discre…
Loading and relaxation dynamics of a red blood cell
Fabio Guglietta, Marek Behr, Giacomo Falcucci +1
We use mesoscale numerical simulations to investigate the unsteady dynamics of a single red blood cell (RBC) subjected to an external mechanical load. We carry out a detailed compa…
Lattice Boltzmann simulations on the tumbling to tank-treading transition: effects of membrane viscosity
Fabio Guglietta, Marek Behr, Luca Biferale +2
The tumbling to tank-treading (TB-TT) transition for red blood cells (RBCs) has been widely investigated, with a main focus on the effects of the viscosity ratio (i.e., the rat…
On the effects of membrane viscosity on transient red blood cell dynamics
F. Guglietta, M. Behr, L. Biferale +2
Computational Fluid Dynamics (CFD) is currently used to design and improve the hydraulic properties of biomedical devices, wherein the large scale blood circulation needs to be sim…