Dynamique des Fluides (DynFluid): Recent submissions

Now showing items 197-203 of 295

    • Successive bifurcations in a fully three-dimensional open cavity flow 
      Article dans une revue avec comité de lecture
      PICELLA, Francesco; LUSSEYRAN, F; CHERUBINI, Stefania; PASTUR, L; ccROBINET, Jean-Christophe; ccLOISEAU, Jean-Christophe (Cambridge University Press (CUP), 2018)
      The transition to unsteadiness of a three-dimensional open cavity flow is investigated using the joint application of direct numerical simulations and fully three-dimensional linear stability analyses, providing a clear ...
    • Experimental investigation on the effect of load distribution on the performances of a counter-rotating axial-flow fan 
      Article dans une revue avec comité de lecture
      WANG, Juan; ccRAVELET, Florent; ccSARRAF, Christophe; ccBAKIR, Farid (Elsevier, 2018)
      In the design procedure of a counter-rotating axial-flow stage, parameters such as the angular velocity ratio and the repartition of the work performed by each rotors are to be chosen. In the present Article, three ...
    • 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 ...
    • Optimal perturbation for two-dimensional vortex systems: route to non-axisymmetric state 
      Article dans une revue avec comité de lecture
      NAVROSE; JOHNSON, Author H. G.; BRION, Véronique; JACQUIN, Laurent; ccROBINET, Jean-Christophe (Cambridge University Press (CUP), 2018)
      We investigate perturbations that maximize the gain of disturbance energy in a two-dimensional isolated vortex and a counter-rotating vortex pair. The optimization is carried out using the method of Lagrange multipliers. ...
    • Thermal aging kinetic and effects on mechanical behavior of fully recycled composite based on polypropylene/polyethylene blend 
      Article dans une revue avec comité de lecture
      TAMBOURA, Sahbi; BENDALY, Hachmi; FITOUSSI, Jean Paul; MEFTAH, Hicham; ccTCHARKHTCHI, Abbas (Wiley, 2018)
      The effect of thermal oxidation of a fully recycled carbon fibers reinforced stabilized polypropylene/polyethylene blend on the mechanical properties has been studied at 120, 130 and 140 °C. In a first step, several analyses ...
    • 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 ...