Fluid Structure Interaction of 2D Objects through a Coupled KBC-Free Surface Model

In this study, the capabilities of a coupled KBC-free surface model to deal with fluid solid interactions with the slamming of rigid obstacles in a calm water tank were analyzed. The results were firstly validated with experimental and numerical data available in literature and, thereafter, some add...

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Main Author: Daniele Chiappini
Format: Article
Language:English
Published: MDPI AG 2020-04-01
Series:Water
Subjects:
Online Access:https://www.mdpi.com/2073-4441/12/4/1212
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author Daniele Chiappini
author_facet Daniele Chiappini
author_sort Daniele Chiappini
collection DOAJ
description In this study, the capabilities of a coupled KBC-free surface model to deal with fluid solid interactions with the slamming of rigid obstacles in a calm water tank were analyzed. The results were firstly validated with experimental and numerical data available in literature and, thereafter, some additional analyses was carried out to understand the main parameters’ influence on slamming coefficient. The effect of grid resolution and Reynolds number were firstly considered to choose the proper grid and to present the weak impact of such a non-dimensional number on process evolution. Hence, the influence of Froude number on fluid-dynamics quantities was pointed out considering vertical impacts of both cylindrical, as in the references, and ellipsoidal obstacles. Different formulations of slamming coefficient were used and compared. Results are pretty encouraging and they confirm the effectiveness of lattice Boltzmann model to deal with such a problem. This leaves the door open to additional improvements addressed to the study of free buoyant bodies immersed in a fluid domain.
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spelling doaj.art-c64b912e74ea43bd8e48c10b91424c4e2023-11-19T22:39:40ZengMDPI AGWater2073-44412020-04-01124121210.3390/w12041212Fluid Structure Interaction of 2D Objects through a Coupled KBC-Free Surface ModelDaniele Chiappini0Department of Mechanical Engineering, University of Rome Niccolò Cusano, 00166 Rome, ItalyIn this study, the capabilities of a coupled KBC-free surface model to deal with fluid solid interactions with the slamming of rigid obstacles in a calm water tank were analyzed. The results were firstly validated with experimental and numerical data available in literature and, thereafter, some additional analyses was carried out to understand the main parameters’ influence on slamming coefficient. The effect of grid resolution and Reynolds number were firstly considered to choose the proper grid and to present the weak impact of such a non-dimensional number on process evolution. Hence, the influence of Froude number on fluid-dynamics quantities was pointed out considering vertical impacts of both cylindrical, as in the references, and ellipsoidal obstacles. Different formulations of slamming coefficient were used and compared. Results are pretty encouraging and they confirm the effectiveness of lattice Boltzmann model to deal with such a problem. This leaves the door open to additional improvements addressed to the study of free buoyant bodies immersed in a fluid domain.https://www.mdpi.com/2073-4441/12/4/1212fluid structure interactionfree surfacelattice Boltzmannslamming coefficient
spellingShingle Daniele Chiappini
Fluid Structure Interaction of 2D Objects through a Coupled KBC-Free Surface Model
Water
fluid structure interaction
free surface
lattice Boltzmann
slamming coefficient
title Fluid Structure Interaction of 2D Objects through a Coupled KBC-Free Surface Model
title_full Fluid Structure Interaction of 2D Objects through a Coupled KBC-Free Surface Model
title_fullStr Fluid Structure Interaction of 2D Objects through a Coupled KBC-Free Surface Model
title_full_unstemmed Fluid Structure Interaction of 2D Objects through a Coupled KBC-Free Surface Model
title_short Fluid Structure Interaction of 2D Objects through a Coupled KBC-Free Surface Model
title_sort fluid structure interaction of 2d objects through a coupled kbc free surface model
topic fluid structure interaction
free surface
lattice Boltzmann
slamming coefficient
url https://www.mdpi.com/2073-4441/12/4/1212
work_keys_str_mv AT danielechiappini fluidstructureinteractionof2dobjectsthroughacoupledkbcfreesurfacemodel