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Lattice Boltzmann Analysis of Fluid-Structure Interaction with Moving Boundaries

Published online by Cambridge University Press:  03 June 2015

Alessandro De Rosis*
Affiliation:
Department of Civil, Environmental and Materials Engineering, University of Bologna, Bologna 40136, Italy
Giacomo Falcucci*
Affiliation:
Department of Technologies, University of Naples “Parthenope”, Naples, Italy
Stefano Ubertini*
Affiliation:
DEIM - Industrial Engineering School, University of Tuscia, Largo dell’Università s.n.c., 01100, Viterbo, Italy
Francesco Ubertini*
Affiliation:
Department of Civil, Environmental and Materials Engineering, University of Bologna, Bologna 40136, Italy
Sauro Succi*
Affiliation:
Istituto per le Applicazioni del Calcolo - CNR, Via dei Taurini, 00100 Roma, Italy
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Abstract

This work is concerned with the modelling of the interaction of fluid flow with flexibly supported rigid bodies. The fluid flow is modelled by Lattice-Boltzmann Method, coupled to a set of ordinary differential equations describing the dynamics of the solid body in terms its elastic and damping properties. The time discretization of the body dynamics is performed via the Time Discontinuous Galerkin Method. Several numerical examples are presented and highlight the robustness and efficiency of the proposed methodology, by means of comparisons with previously published results. The examples show that the present fluid-structure method is able to capture vortex- induced oscillations of flexibly-supported rigid body.

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Type
Research Article
Copyright
Copyright © Global Science Press Limited 2013

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