Zobrazeno 1 - 10 of 128 pro vyhledávání: '"Riccardo Broglia"'
1
Akademický článek
Simulation-Driven Design Optimization of a Destroyer-Type Vessel via Multi-Fidelity Supervised Active Learning
Autor: Emanuele Spinosa, Riccardo Pellegrini, Antonio Posa, Riccardo Broglia, Mario De Biase, Andrea Serani
Publikováno v: Journal of Marine Science and Engineering, Vol 11, Iss 12, p 2232 (2023)
The paper presents the use of a supervised active learning approach for the solution of a simulation-driven design optimization (SDDO) problem, pertaining to the resistance reduction of a destroyer-type vessel in calm water. The optimization is formu
Externí odkaz: https://doaj.org/article/65ac218be5f0412bbda2437394bd2e02
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2
Akademický článek
A Generalized Hybrid RANSE/BEM Approach for the Analysis of Hull–Propeller Interaction in Off-Design Conditions
Autor: Danilo Calcagni, Giulio Dubbioso, Alessandro Capone, Fabrizio Ortolani, Riccardo Broglia
Publikováno v: Journal of Marine Science and Engineering, Vol 9, Iss 5, p 482 (2021)
During maneuvers, propellers’ operation differs from their design due to strong modification of the wake field with respect to the straight-ahead motion. The consequent modification of the loads overstresses the mechanical components of the shaftli
Externí odkaz: https://doaj.org/article/5368745abadd46ceb2adbc55c0f45c5a
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3
Momentum recovery downstream of an axial-flow hydrokinetic turbine
Autor: Riccardo Broglia, Antonio Posa
Publikováno v: Renewable energy 170 (2021): 1275–1291. doi:10.1016/j.renene.2021.02.061
info:cnr-pdr/source/autori:Posa, Antonio; Broglia, Riccardo/titolo:Momentum recovery downstream of an axial-flow hydrokinetic turbine/doi:10.1016%2Fj.renene.2021.02.061/rivista:Renewable energy/anno:2021/pagina_da:1275/pagina_a:1291/intervallo_pagine:1275–1291/volume:170
Large-Eddy Simulation is adopted to reproduce the wake of an axial-flow hydrokinetic turbine. The process of momentum recovery is correlated with the destabilization of the wake system, starting wake contraction and radial flows from the free-stream
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::801fa80226eb1bfb9fe099aee6175db5
https://doi.org/10.1016/j.renene.2021.02.061
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4
Hydrodynamic analysis of the water landing phase of aircraft fuselages at constant speed and fixed attitude
Autor: Emanuele Spinosa, Riccardo Broglia, Alessandro Iafrati
In this paper the hydrodynamics of fuselage models representing the main body of three different types of aircraft, moving in water at constant speed and fixed attitude is investigated using the Unsteady Reynolds-Averaged Navier-Stokes (URANS) level-
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::60fbe715c1fc4ce67cbb72a7e8cd561e
http://arxiv.org/abs/2208.01504
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5
Scalability of a Large Eddy Simulation solver on Vega and Karolina clusters
Autor: Antonio Posa, Riccardo Broglia
Publikováno v: pp.1–10, 2022
The present project is aimed at demonstrating the scalability of an in-house, academic Large-Eddy Simulation solver in Fortran language on both Vega and Karolina CPU partitions, in order to provide evidence of its portability and suitability for futu
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=cnr_________::3f9064abe5fdc26b2e12d06c507e269e
https://publications.cnr.it/doc/463697
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6
Computational hydroacoustic analysis of the BB2 submarine using the advective Ffowcs Williams and Hawkings equation with Wall-Modeled LES
Autor: Andrea Rocca, Marta Cianferra, Riccardo Broglia, Vincenzo Armenio
In the present work we perform the numerical characterization of the hydrodynamic and the hydroacoustic field of a notional submarine geometry (the BB2 submarine). Starting from a model-scale CFD simulation, the full scale acoustic signature of the s
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d1ee1518631a66b33006ce21c01dbcbf
https://hdl.handle.net/11368/3038023
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10
Instability of the tip vortices shed by an axial-flow turbine in uniform flow
Autor: Elias Balaras, Antonio Posa, Riccardo Broglia
Publikováno v: Journal of Fluid Mechanics. 920
Large-eddy simulation is utilized to reproduce the instability of the tip vortices shed from the blades of an axial-flow turbine. The oscillations of their helical trajectories trigger mutual interaction between them. This accelerates the process of
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::af1c92b578e2d2cafa1a162277f0b05d
https://doi.org/10.1017/jfm.2021.433
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