Zobrazeno 1 - 10
of 86
pro vyhledávání: '"Lanotte, Alessandra S."'
We address the problem of data augmentation in a rotating turbulence set-up, a paradigmatic challenge in geophysical applications. The goal is to reconstruct information in two-dimensional (2D) cuts of the three-dimensional flow fields, imagining to
Externí odkaz:
http://arxiv.org/abs/2312.11121
Autor:
Panico, Riccardo, Lanotte, Alessandra S., Trypogeorgos, Dimitrios, Gigli, Giuseppe, De Giorgi, Milena, Sanvitto, Daniele, Ballarini, Dario
The similarities of quantum turbulence with classical hydrodynamics allow quantum fluids to provide essential models of their classical analogue, paving the way for fundamental advances in physics and technology. Recently, experiments on 2D quantum t
Externí odkaz:
http://arxiv.org/abs/2306.17530
In this paper we study the ductile breakup of tracer aggregates in an incompressible, homogeneous, and isotropic three-dimensional turbulent flow. The flow dynamics is studied by means of a direct numerical simulation, whereas the Lagrangian velociti
Externí odkaz:
http://arxiv.org/abs/2302.11350
Autor:
Panico, Riccardo, Macorini, Guido, Dominici, Lorenzo, Gianfrate, Antonio, Fieramosca, Antonio, De Giorgi, Milena, Gigli, Giuseppe, Sanvitto, Daniele, Lanotte, Alessandra S., Ballarini, Dario
Publikováno v:
Phys. Rev. Lett. 127, 047401 (2021)
If a quantum fluid is driven with enough angular momentum, at equilibrium the ground state of the system is given by a lattice of quantised vortices whose density is prescribed by the quantization of circulation. We report on the first experimental s
Externí odkaz:
http://arxiv.org/abs/2009.10534
Autor:
Suárez-Forero, Daniel G., Riminucci, Fabrizio, Ardizzone, Vincenzo, Karpowicz, Nicholas, Maggiolini, Eugenio, Macorini, Guido, Lerario, Giovanni, Todisco, Francesco, De Giorgi, Milena, Dominici, Lorenzo, Ballarini, Dario, West, Kenneth, Pfeiffer, Loren, Gigli, Giuseppe, Lanotte, Alessandra S., Sanvitto, Daniele
Publikováno v:
Phys. Rev. Lett. 126, 137401 (2021)
Exciton-polaritons are hybrid light-matter excitations arising from the non-perturbative coupling of a photonic mode and an excitonic resonance. Behaving as interacting photons, they show optical third-order nonlinearities providing effects such as o
Externí odkaz:
http://arxiv.org/abs/2005.11385
Publikováno v:
In Computers and Fluids 15 September 2023 263
Autor:
Buzzicotti, Michele, Bhatnagar, Akshay, Biferale, Luca, Lanotte, Alessandra S., Ray, Samriddhi Sankar
Publikováno v:
New J. Phys. 18 113047 (2016)
We study small-scale and high-frequency turbulent fluctuations in three-dimensional flows under Fourier-mode reduction. The Navier-Stokes equations are evolved on a restricted set of modes, obtained as a projection on a fractal or homogeneous Fourier
Externí odkaz:
http://arxiv.org/abs/1701.00351
Autor:
Biferale, Luca, Bonaccorso, Fabio, Mazzitelli, Irene M., van Hinsberg, Michel A. T., Lanotte, Alessandra S., Musacchio, Stefano, Perlekar, Prasad, Toschi, Federico
Publikováno v:
Phys. Rev. X vol. 6 041036 (2016)
By using direct numerical simulations (DNS) at unprecedented resolution we study turbulence under rotation in the presence of simultaneous direct and inverse cascades. The accumulation of energy at large scale leads to the formation of vertical coher
Externí odkaz:
http://arxiv.org/abs/1611.07600
Publikováno v:
Eur. Phys. J. E, 39 4 (2016) 49
Incompressible, homogeneous and isotropic turbulence is studied by solving the Navier-Stokes equations on a reduced set of Fourier modes, belonging to a fractal set of dimension $D$. By tuning the fractal dimension parameter, we study the dynamical e
Externí odkaz:
http://arxiv.org/abs/1605.01527
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