Institut de Recherche de l’École navale (IRENAV): Soumissions récentes

Voici les éléments 64-70 de 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 ...
    • Sail trimming FSI simulation - Comparison of viscous and inviscid flow models to optimise upwind sails trim 
      Communication avec acte
      SACHER, Matthieu; ccHAUVILLE, Frederic; ccBOT, Patrick; DURAND, Mathieu (2015)
      A numerical comparison between two FSI models, based on inviscid and viscous flow solvers, is presented in this paper. The differences between aerodynamic coefficients, sail flying shape and pressures computed by both FSI ...
    • 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 ...
    • Flexible hydrofoil optimization for the 35th america's cup constrained ego method 
      Communication avec acte
      SACHER, Matthieu; DURAND, Mathieu; BERRINI, Elisa; ccHAUVILLE, Frederic; DUVIGNEAU, Régis; LE MAITRE, O (2017)
      This paper investigates the use of constrained surrogate models to solve the multi-design optimization problem of a flexible hydrofoil. The surrogate-based optimization (EGO) substitutes the complex objective function of ...
    • Unsteady numerical simulations of downwind sails 
      Communication avec acte
      DURAND, Mathieu; ccHAUVILLE, Frederic; ccBOT, Patrick; AUGIER, Benoit; ROUX, Yann; LEROYER, Alban; VISONNEAU, Michel (Royal Institution of Naval Architects, 2010)
      Modelling the wind, sail and rig interactions on a sailing yacht is a complex subject, because the quality of simulation depends on the accuracy of both structural and fluid simulations which strongly interact. Moreover, ...
    • Sailing site investigation through CFD modelling of micrometeorology 
      Communication avec acte
      LE GUELLEC, Malo; AMICE, Yann (Ecole Navale, 2013)
      To have a prior accurate knowledge of the local wind currents on a water body is of crucial importance for the performance of the sailing team. In the recent years, Computational Fluid Dynamics (CFD) has proven itself a ...
    • Graph Signals Classification Using Total Variation and Graph Energy Informations 
      Communication avec acte
      BAY-AHMED, Hadj-Ahmed; DARE-EMZIVAT, Delphine; ccBOUDRAA, Abdel-Ouahab (2017)
      In this work, we consider the problem of graph signals classification. We investigate the relevance of two attributes, namely the total variation (TV) and the graph energy (GE) for graph signals classification. The TV is ...