Institut de Recherche de l’École navale (IRENAV): Recent submissions

Now showing items 57-63 of 271

    • Numerical study of a flexible sail plan : effect of pitching decomposition and adjustments 
      Communication avec acte
      AUGIER, Benoit; DEPARDAY, Julien; DURAND, Mathieu; ccBOT, Patrick; ccHAUVILLE, Frederic (Ecole Navale, 2013)
      A numerical investigation of the dynamic Fluid Structure Interaction (FSI) of a yacht sail plan submitted to harmonic pitching is presented to analyse the effects of motion simplifications and rigging adjustments on ...
    • How to be the best at sail pumping? 
      Communication avec acte
      AUBIN, Nicolas; DHOME, Ulisse; AUGIER, Benoit; ccBOT, Patrick; ccHAUVILLE, Frederic (2016)
      Pumping or flicking1 is often used by sailors to get extra propulsion while sailing (subject to restrictions by the racing rules2). Common unsteady sailing situations, due to crew action (e.g. manoeuver like gybing3) or ...
    • Antartic blue whale localization with ocean bottom seismometers in southern indian ocean 
      Communication avec acte
      DREO, Richard; BOUFFAUT, Léa; GUILLON, Laurent; LABAT, Valérie; BARRUOL, Guilhem; ccBOUDRAA, Abdel-Ouahab (2017)
      While visual survey of whales requires substantial means for limited areas, passive acoustic monitoring (PAM) offers larger scale coverage for long periods and less costs. It usually provides information about species ...
    • Experimental and numerical trimming optimizations for a mainsail in upwind conditions 
      Communication avec acte
      SACHER, Matthieu; DUVIGNEAU, Régis; LE MAITRE, Olivier; AUBIN, Nicolas; DURAND, Mathieu; ccHAUVILLE, Frederic (2016)
      This paper investigates the use of meta-models for optimizing sails trimming. A Gaussian process is used to robustly approximate the dependence of the performance with the trimming parameters to be optimized. The Gaussian ...
    • Modal Analysis of Pressures on a Full-Scale Spinnaker 
      Communication avec acte
      DEPARDAY, Julien; AUGIER, Benoit; RABAUD, Marc; MOTTA, Dario; LE PELLEY, David; ccBOT, Patrick; ccHAUVILLE, Frederic (2016)
      While sailing offwind, the trimmer typically adjusts the downwind sail "on the verge of luffing", letting occasionally the luff of the sail flapping. Due to the unsteadiness of the spinnaker itself, maintaining the luff ...
    • Efficient optimization procedure in non-linear fluid-structure interaction problem: Application to mainsail trimming in upwind conditions 
      Article dans une revue avec comité de lecture
      SACHER, Matthieu; DUVIGNEAU, Régis; LE MAÎTRE, Olivier; AUBIN, Nicolas; DURAND, Mathieu; ccHAUVILLE, Frederic (Elsevier, 2017)
      This paper investigates the use of Gaussian processes to solve sail trimming optimization problems. The Gaussian process, used to model the dependence of the performance with the trimming parameters, is constructed from a ...
    • Optimisation de la loi de calage d’un propulseur cycloïdal 
      Communication avec acte
      LECUYER-LE BRIS, Romain; DENISET, François; FASSE, Guillaume; ccHAUVILLE, Frederic (2018)
      Les propulseurs cycloïdaux sont caractérisés par la rotation de plusieurs pales autour d’un axe vertical, associée à un mouvement de chaque pale autour de son axe propre. L’objet de cet article concerne l’étude des lois ...