Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Guglietta, Fabio"'
Autor:
Simeoni, Daniele, Rossi, Andrea Renato, Parise, Gianmarco, Guglietta, Fabio, Sbragaglia, Mauro
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 fluid-like models, obtained by suitable closure assumptions applied t
Externí odkaz:
http://arxiv.org/abs/2404.19635
Autor:
Guglietta, Fabio, Pelusi, Francesca
In this Letter, we fill in the blanks in the theory of drops under shear flow by unifying analytical predictions for steady-state behavior proposed by Flumerfelt [R. W. Flumerfelt, J. Colloid Interface Sci. 76, 330 (1980)] for unconfined drops with i
Externí odkaz:
http://arxiv.org/abs/2404.15019
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 coupling between the lattice Boltzmann (LB) method, employed for the flow sim
Externí odkaz:
http://arxiv.org/abs/2403.01161
Autor:
Simeoni, Daniele, Parise, Gianmarco, Guglietta, Fabio, Rossi, Andrea Renato, Rosenzweig, James, Cianchi, Alessandro, Sbragaglia, Mauro
Publikováno v:
Physics of Plasmas, 31 (2024) 013904
A comprehensive characterization of lattice Boltzmann (LB) schemes to perform warm fluid numerical simulations of particle wakefield acceleration (PWFA) processes is discussed in this paper. The LB schemes we develop hinge on the moment matching proc
Externí odkaz:
http://arxiv.org/abs/2309.04872
Publikováno v:
Physics of Fluids 35, 082126 (2023)
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 with an oxidize surface layer, in this work we introduce a computational
Externí odkaz:
http://arxiv.org/abs/2305.18919
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 reducing the loading time, that is, the time required to reach the steady-
Externí odkaz:
http://arxiv.org/abs/2302.03546
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 retrieved in the framework of the perturbation theory for small deformatio
Externí odkaz:
http://arxiv.org/abs/2210.13409
Autor:
Parise, Gianmarco, Cianchi, Alessandro, Del Dotto, Alessio, Guglietta, Fabio, Rossi, Andrea Renato, Sbragaglia, Mauro
Publikováno v:
Phys. Plasmas 29, 043903 (2022)
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 discretization of the continuum kinetic theory while assuring the convergenc
Externí odkaz:
http://arxiv.org/abs/2201.05473
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 comparison between the {\it loading} (L) dynamics, following the imposition
Externí odkaz:
http://arxiv.org/abs/2102.08752
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 $\lambda$ (i.e., the ratio between the viscosities of the fluids inside and outside the
Externí odkaz:
http://arxiv.org/abs/2012.06190