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

Now showing items 197-203 of 270

    • An Ontology for Submarine Feature Representation on Charts 
      Communication avec acte
      YAN, Jingya; GUILBERT, Eric; ccSAUX, Eric (Springer-Verlag, 2013)
      A landform is a subjective individuation of a part of a terrain. Landform recognition is a difficult task because its definition usually relies on a qualitative and fuzzy description. Achieving automatic recognition of ...
    • Time Resolved Two Dimensional X-Ray Densitometry of a Two Phase Flow Downstream of a Ventilated Cavity 
      Article dans une revue avec comité de lecture
      MAKIHARJU, Simo A; PAIK, Bu-Geun; CHANG, Natasha A; PERLIN, Marc; CECCIO, Steven L; ccGABILLET, Céline (Springer Verlag (Germany), 2013)
      To measure the void fraction distribution in gas-liquid flows, a two-dimensional x-ray densitometry system was developed. This system is capable of acquiring a two-dimensional projection with a 225 cm2 area of measurement ...
    • Numerical simulation of bubble dispersion in turbulent Taylor-Couette flow 
      Article dans une revue avec comité de lecture
      CHOUIPPE, Agathe; CLIMENT, Eric; LEGENDRE, Dominique; ccGABILLET, Céline (American Institute of Physics, 2014)
      We investigate bubble dispersion in turbulent Taylor-Couette flow. The aim of this study is to describe the main mechanisms yielding preferential bubble accumulation in near-wall structures of the flow. We first proceed ...
    • Effect of the laminar separation bubble induced transition on the hydrodynamic performance of a hydrofoil 
      Article dans une revue avec comité de lecture
      DELAFIN, Pierre-Luc; DENISET, François; ccASTOLFI, Jacques Andre (Elsevier, 2014)
      The present study deals with the effect of the laminar separation bubble (LSB) induced transition on the lift, drag and moment coefficients of a hydrofoil. A 2D numerical study, based on the SST γ –Reθ transition model of ...
    • Exploitation d’enregistrements sonores pour une sensibilisation au bruit en environnement professionnel 
      Article dans une revue avec comité de lecture
      LABAT, Valérie; DARE-EMZIVAT, Delphine (EDP Sciences, 2013)
      Cet article présente une séance de travaux pratiques relative aux niveaux de bruits à bord des navires. L’objectif est de sensibiliser les élèves aux risques liés à l’exposition au bruit à partir d’une approche didactique ...
    • The parametric propagation in underwater acoustics : experimental results 
      Communication avec acte
      BOUTTARD, Etienne; LABAT, Valérie; BOU MATAR, Olivier; CHONAVEL, Thierry (Société Française d'Acoustique, 2012)
      In underwater acoustics, detection of buried objects in sediments (cables, mines, . . . ) is a complex problem. Indeed, in order to ensure sufficient penetration depth in marine sediments, low frequencies have to be used, ...
    • A potential-flow based flight simulator for an underwater glider 
      Article dans une revue avec comité de lecture
      PHOEMSAPTHAWEE, Surasak; LE BOULLUEC, Marc; LAURENS, Jean-Marc; DENISET, François (Springer Verlag (Germany), 2013)
      Underwater gliders are recent innovative types of autonomous underwater vehicles (AUVs) used in ocean exploration and observation. They adjust their buoyancy to dive and to return to the ocean surface. During the change ...