Dynamique des Fluides (DynFluid): Soumissions récentes

Voici les éléments 246-252 de 295

    • Study of the cavitating instability on a grooved Venturi profile 
      Article dans une revue avec comité de lecture
      DANLOS, Amélie; MÉHAL, Jean-Elie; ccRAVELET, Florent; ccCOUTIER-DELGOSHA, Olivier; ccBAKIR, Farid (American Society of Mechanical Engineers, 2014)
      Instabilities of a partial cavity developed on a hydrofoil, a converging-diverging step, or in an interblade channel have already been investigated in many previous works. The aim of this study is to evaluate a passive ...
    • Influence of design parameters on the global performances of low-speed counter-rotating axial-flow fans 
      Communication avec acte
      WANG, Juan; ccRAVELET, Florent; ccBAKIR, Farid (2014)
      The present work aims at experimentally investigating the effects of some parameters on the performances of a counter-rotating stage, and on the instationary flow between the rotors. Three counter-rotating fans, which have ...
    • Experimental study of the instationary flow between two ducted Counter-rotating rotors 
      Article dans une revue avec comité de lecture
      NOURI, Hussain; DANLOS, Amélie; ccRAVELET, Florent; ccSARRAF, Christophe; ccBAKIR, Farid (American Society of Mechanical Engineers, 2013)
      The purpose of this work is to study experimentally the aerodynamic characteristics of a subsonic counter-rotating axial-flow fans system operating in a ducted configuration. The fans of diameter D = 375 mm were designed ...
    • Optimal perturbations in boundary layer flows over rough surfaces 
      Article dans une revue avec comité de lecture
      CHERUBINI, Stefania; DE TULLIO, Marco; DE PALMA, Pietro; PASCAZIO, Giuseppe (American Society of Mechanical Engineers, 2013)
      This work provides a three-dimensional energy optimization analysis, looking for perturbations inducing the largest energy growth at a finite time in a boundary-layer flow in the presence of roughness elements. The immersed ...
    • Two-dimensional numerical simulations of nonlinear acoustic streaming in standing waves 
      Article dans une revue avec comité de lecture
      BALTEAN-CARLÈS, Diana; WEISMAN, Catherine; DEBESSE, Philippe; GANDIKOTA, Gurunath; ccDARU, Virginie (Elsevier, 2013)
      Numerical simulations of compressible Navier–Stokes equations in closed two-dimensional channels are performed. A plane standing wave is excited inside the channel and the associated acoustic streaming is investigated for ...
    • Nonlinear control of unsteady finite-amplitude perturbations in the Blasius boundary-layer flow 
      Article dans une revue avec comité de lecture
      CHERUBINI, Stefania; DE PALMA, Pietro; ccROBINET, Jean-Christophe (Cambridge University Press (CUP), 2013)
      The present work provides an optimal control strategy, based on the nonlinear Navier–Stokes equations, aimed at hampering the rapid growth of unsteady finite-amplitude perturbations in a Blasius boundary-layer flow. A ...
    • Étude expérimentale de l’écoulement et de l’interaction entre deux rotors contrarotatifs subsoniques 
      Article dans une revue avec comité de lecture
      NOURI, Hussain; ccBAKIR, Farid; ccRAVELET, Florent (EDP Sciences, 2014)
      Recently, the need for smaller axial‐flow fans with high specific speeds leads to the design of counter‐rotating axial fans. The design of this type of machines, which have promising aerodynamic performances, suffers from ...