Dynamique des Fluides (DynFluid): Soumissions récentes

Voici les éléments 64-70 de 295

    • Invariant solutions in a channel flow using a minimal restricted nonlinear model 
      Article dans une revue avec comité de lecture
      ALIZARD, Frédéric (Elsevier Masson, 2017)
      Simulations using a Restricted Nonlinear (RNL) system, where mean flow distortion resulting from Reynolds stress feedback regenerates rolls, is applied in a channel flow under subcritical conditions. This quasi-linear ...
    • Development and analysis of high-order vorticity confinement schemes 
      Article dans une revue avec comité de lecture
      PETROPOULOS, I.; COSTES, M.; CINNELLA, Paola (ELSEVIER, 2017)
      High-order extensions of the Vorticity Confinement (VC) method are developed for the accurate com- putation of vortical flows, following the VC2 conservative formulation of Steinhoff. First, a high-order formulation of VC ...
    • Space–time dynamics of optimal wavepackets for streaks in a channel entrance flow 
      Article dans une revue avec comité de lecture
      ALIZARD, Frédéric; CADIOU, A.; LE PENVEN, L.; DI PIERRO, B.; BUFFAT, M. (Cambridge University Press (CUP), 2018)
      The laminar–turbulent transition of a plane channel entrance flow is revisited using global linear optimization analyses and direct numerical simulations. The investigated case corresponds to uniform upstream velocity ...
    • Bifurcation analysis and frequency prediction in shear-driven cavity flow 
      Article dans une revue avec comité de lecture
      BENGANA, Y.; TUCKERMAN, L. S.; ccROBINET, Jean-Christophe; ccLOISEAU, Jean-Christophe (Cambridge University Press (CUP), 2019)
      A comprehensive study of the two-dimensional incompressible shear-driven flow in an open square cavity is carried out. Two successive bifurcations lead to two limit cycles with different frequencies and different numbers ...
    • Experimental investigation of an actively controlled automotive cooling fan using steady air injection in the leakage gap 
      Article dans une revue avec comité de lecture
      AZZAM, Tarik; PARIDAENS, Richard; OUALLI, Hamid; ccRAVELET, Florent; ccBAKIR, Farid; ccKHELLADI, Sofiane (SAGE Publications, 2017)
      In an axial fan, a leakage flow driven by a pressure gradient between the pressure side and the suction side occurs in the gap between the shroud and the casing. This leakage flow is in the opposite direction to the main ...
    • Large scale dynamics of a high Reynolds number axisymmetric separating/reattaching flow 
      Article dans une revue avec comité de lecture
      PAIN, R; WEISS, P-E; DECK, S; ccROBINET, Jean-Christophe (American Institute of Physics, 2019)
      A numerical study is conducted to unveil the large scale dynamics of a high Reynolds number axisymmetric separating/reattaching flow at M∞ = 0.7. The numerical simulation allows us to acquire a high rate sampled unsteady ...
    • Investigation of the dynamics in separated turbulent flow 
      Article dans une revue avec comité de lecture
      FADLA, Fawzi; ALIZARD, Frédéric; KEIRSBULCK, Laurent; LAVAL, Jean-Philippe; FOUCAUT, Jean-Marc; CHOVET, Camila; LIPPERT, Marc; ccROBINET, Jean-Christophe (Elsevier, 2019)
      Dynamical behavior of the turbulent channel flow separation induced by a wall-mounted two-dimensional bump is studied, with an emphasis on unsteadiness characteristics of vortical motions evolving in the separated flow. ...