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Fluid Structure Interaction of Yacht Sails in the Unsteady Regime

Chapitre d'ouvrage scientifique
Auteur
AUGIER, Benoit
ccBOT, Patrick
13094 Institut de Recherche de l'Ecole Navale [IRENAV]
ccHAUVILLE, Frederic
DURAND, Mathieu
233702 K-Epsilon

URI
http://hdl.handle.net/10985/12555
Date
2013

Résumé

The dynamic Fluid Structure Interaction (FSI) of yacht sails submitted to a harmonic pitching motion is numerically investigated to address both issues of aerodynamic unsteadiness and structural deformation. The model consists in an implicit dynamic coupling algorithm between a Vortex Lattice Method model for the aerodynamics and a Finite Element Method model for the structure dynamics. It is shown that the dynamic behaviour of a sail plan subject to yacht motion clearly deviates from the quasi-steady theory. The aerodynamic forces oscillate with phase shifts with respect to the motion. This results in hysteresis phenomena, which show aerodynamic equivalent damping and stiffening effects of the unsteady behaviour. The area of the hysteresis loop corresponds to the amount of energy exchanged by the system and increases with the motion reduced frequency and amplitude. In the case of a rigid structure, the aerodynamic forces oscillations and the exchanged energy are lower than for a flexible structure.

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  • Institut de Recherche de l’École navale (IRENAV)

Documents liés

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  • Fluid Structure Interaction of Yacht Sails in the Unsteady Regime 
    Chapitre d'ouvrage scientifique
    AUGIER, Benoit; DURAND, Mathieu; ccBOT, Patrick; ccHAUVILLE, Frederic (Editions de l'Ecole Polytechnique, 2013)
    The dynamic Fluid Structure Interaction (FSI) of yacht sails submitted to a harmonic pitching motion is numerically investigated to address both issues of aerodynamic unsteadiness and structural deformation. The model ...
  • Numerical study of a Flexible Sail Plan submitted to pitching : Hysteresis phenomenon and effect of rig Adjustments 
    Article dans une revue avec comité de lecture
    AUGIER, Benoit; ccHAUVILLE, Frederic; ccBOT, Patrick; AUBIN, Nicolas; DURAND, Mathieu (Elsevier, 2014)
    A numerical investigation of the dynamic Fluid Structure Interaction (FSI) of a yacht sail plan submitted to harmonic pitching is presented to analyse the system's dynamic behaviour and the effects of motion simplifications ...
  • Dynamic Behaviour of a Flexible Yacht Sail Plan 
    Article dans une revue avec comité de lecture
    AUGIER, Benoit; ccBOT, Patrick; ccHAUVILLE, Frederic; DURAND, Mathieu (Elsevier, 2013)
    A numerical investigation of the dynamic Fluid Structure Interaction (FSI) of a yacht sail plan submitted to harmonic pitching is presented to address both issues of aerodynamic unsteadiness and structural deformation. The ...
  • Experimental validation of unsteady models for fluid structure interaction: Application to yacht sails and rigs 
    Article dans une revue avec comité de lecture
    AUGIER, Benoit; ccBOT, Patrick; ccHAUVILLE, Frederic; DURAND, Mathieu (Elsevier, 2012)
    This work presents a full scale experimental study on the aero-elastic wind/sails/rig interaction in real navigation conditions with the aim to give an experimental validation of unsteady fluid structure interaction (FSI) ...
  • Experimental validation of unsteady models for wind / sails / rigging fluid structure interaction 
    Communication avec acte
    AUGIER, Benoit; ccBOT, Patrick; ccHAUVILLE, Frederic; DURAND, Mathieu (Royal Institution of Naval Architects, 2010)
    The aim of this paper is to present the work of experimental validation elements of the aero elastic and unsteady model ARAVANTI. Numerical and Experimental results comparison is made on the rigging and sails of a J80 sail ...

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