Dynamique des Fluides (DynFluid): Recent submissions

Now showing items 197-203 of 291

    • Three-dimensional instability of a ow past a sphere: Mach evolution of the regular and Hopf bifurcations 
      Article dans une revue avec comité de lecture
      SANSICA, Andrea; ALIZARD, Frédéric; GONCALVES, Eric; ccROBINET, Jean-Christophe (Cambridge University Press (CUP), 2018)
      A fully three-dimensional linear stability analysis is carried out to investigate the unstable bifurcations of a compressible viscous fluid past a sphere. A time-stepper technique is used to compute both equilibrium states ...
    • Bioinspired turbine blades offer new perspectives for wind energy 
      Article dans une revue avec comité de lecture
      COGNET, Vincent; COURRECH DU PONT, Sylvain; DOBREV, Ivan; MASSOUH, Fawaz; THIRIA, Benjamin (Royal Society, The, 2017)
      Wind energy is becoming a significant alternative solution for future energy production. Modern turbines now benefit from engineering expertise, and a large variety of different models exists, depending on the context and ...
    • Investigation of the Rotor Wake of Horizontal Axis Wind Turbine under Yawed Condition 
      Article dans une revue avec comité de lecture
      NOURA, Belhadj; DOBREV, Ivan; KERFAH, R.; MASSOUH, Fawaz; ccKHELLADI, Sofiane (2016)
      The wake and the lack of existing velocity behind the wind turbine affect the energy production and the mechanical integrity of wind turbines downstream in the wind farms. This paper presents an investigation of the unsteady ...
    • Optimal bursts in turbulent channel flow 
      Article dans une revue avec comité de lecture
      FARANO, Mirko; CHERUBINI, Stefania; DE PALMA, Pietro; ccROBINET, Jean-Christophe (Springer Verlag, 2017)
      Bursts are recurrent, transient, highly energetic events characterized by localized variations of velocity and vorticity in turbulent wall-bounded flows. In this work, a nonlinear energy optimization strategy is employed ...
    • Approach for numerical modeling of airfoil dynamic stall 
      Communication avec acte
      VELKOVA, Cvetelina; DOBREV, Ivan; TODOROV, Michael; MASSOUH, Fawaz (BulTrans-2012, 2012)
      The aim of the computational study is to present different approach for numerical modeling of airfoil dynamic stall as the airfoil is pitched at a constant rate from zero incidences to a high angle of attack. An application ...
    • Experimental study of blade thickness effects on the overall and local performances of a Controlled Vortex Designed axial-flow fan 
      Article dans une revue avec comité de lecture
      NOURI, Hussain; ccRAVELET, Florent; ccSARRAF, Christophe; ccBAKIR, Farid (Elsevier, 2011)
      The purpose of this work is to study the effects of blade thickness on the performances of an axial-flow fan. Two fans that differ only in the thickness of their blades were studied. The first fan was designed to be part of ...
    • Study of passive control study of the cavitation instability on a venturi profile 
      Communication avec acte
      DANLOS, Amélie; MEHAL, Jean-Elie; ccRAVELET, Florent; ccSARRAF, Christophe (2010)
      This paper presents experimental and numerical results concerning the operation of a configuration that includes an axial pump and a bundle of tubes that mimics the cool source of a heat exchanger. The pump used in the ...