Fluid structure interaction of multiple flapping filaments using Lattice Boltzmann and immersed boundary methods

Julien Favier, Alistair Revell, Alfredo Pinelli

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    Abstract

    The problem of flapping filaments in an uniform incoming flow is tackled using a Lattice Boltzmann—Immersed Boundary method. The fluid momentum equations are solved on a Cartesian uniform lattice while the beating filaments are tracked through a series of markers, whose dynamics are functions of the forces exerted by the fluid, the filament flexural rigidity and the tension. The instantaneous wall conditions on the filament are imposed via a system of singular body forces, consistently discretised on the lattice of the Boltzmann equation. We first consider the case of a single beating filament, and then the case of multiple beating filaments in a side-by-side configuration, focussing on the modal behaviour of the whole dynamical systems.

    Original languageEnglish
    Title of host publication Advances in fluid-structure interaction : updated contributions reflecting new findings presented at the ERCOFTAC symposium on unsteady separation in fluid-structure interaction, 17-21 June 2013, St. John Resort, Mykonos, Greece
    EditorsMarianna Braza, Alessandro Bottaro, Mark THompson
    Place of PublicationCham
    PublisherSpringer Nature
    Pages167-178
    Number of pages12
    Volume133
    ISBN (Print)9783319273846
    DOIs
    Publication statusPublished - 2016
    EventInternational Symposium on Unsteady Separation in Fluid-Structure Interaction, ERCOFTAC 2013 - Mykonos, Greece
    Duration: 17 Jun 201321 Jun 2013

    Publication series

    NameNotes on Numerical Fluid Mechanics and Multidisciplinary Design
    Volume133
    ISSN (Print)16122909

    Conference

    ConferenceInternational Symposium on Unsteady Separation in Fluid-Structure Interaction, ERCOFTAC 2013
    Country/TerritoryGreece
    CityMykonos
    Period17/06/1321/06/13

    Keywords

    • Beating filaments
    • Flapping modes
    • Immersed boundary
    • Lattice Boltzma

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