Dynamique des Fluides (DynFluid): Soumissions récentes

Voici les éléments 232-238 de 295

    • Evidence for Forcing-Dependent Steady States in a Turbulent Swirling Flow 
      Article dans une revue avec comité de lecture
      SAINT-MICHEL, Brice; DUBRULLE, Bérengère; MARIÉ, Louis; DAVIAUD, François; ccRAVELET, Florent (American Physical Society, 2013)
      We study the influence on steady turbulent states of the forcing in a von Karman flow, at constant impeller speed, or at constant torque. We find that the different forcing conditions change the nature of the stability of ...
    • On the dynamics and breakup of a bubble immersed in a turbulent flow 
      Article dans une revue avec comité de lecture
      COLIN, Catherine; RISSO, Frédéric; ccRAVELET, Florent (American Institute of Physics, 2011)
      Experimental investigations of the dynamics of a deformable bubble rising in a uniform turbulent flow are reported. The turbulence is characterized by fast PIV. Time-resolved evolutions of bubble translation, rotation and ...
    • Kinematic Alpha Tensors and dynamo mechanisms in a von Karman swirling flow 
      Article dans une revue avec comité de lecture
      DUBRULLE, Bérengère; DAVIAUD, François; RATIÉ, Pierre-Arthur; ccRAVELET, Florent (American Physical Society, 2012)
      We provide experimental and numerical evidence of in-blades vortices in the von Karman swirling flow. We estimate the associated kinematic α-effect tensor and show that it is compatible with recent models of the von Karman ...
    • Study of passive control study of the cavitation instability on a venturi profile 
      Communication avec acte
      DANLOS, Amélie (2012)
      As a source of vibrations, noise, erosion and structure damages, cavitation is a major handicap for many industrial flows used in different domains from propeller or pump studies, to the analysis of hydrodynamic flows ...
    • Design and Experimental Validation of a Ducted Counter-rotating Axial-flow Fans System 
      Article dans une revue avec comité de lecture
      NOURI, Hussain; ccSARRAF, Christophe; REY, Robert; ccRAVELET, Florent; ccBAKIR, Farid (American Society of Mechanical Engineers, 2012)
      An experimental study on the design of counter-rotating axial-flow fans was carried out. The fans were designed using an inverse method. In particular, the system is designed to have a pure axial discharge flow. The ...
    • Étude expérimentale de l’influence du blocage aval sur les performances de ventilateurs axiaux 
      Communication avec acte
      ccRAVELET, Florent; ccSARRAF, Christophe; ccBAKIR, Farid (2013)
      L’étude a pour objet l’aide au développement d’une méthode de pré-dimensionnement des ventilateurs axiaux opérant en champs contraints. L’influence d’un obstacle situé à l’aval d’un ventilateur est étudiée expérimentalement ...
    • Experimental comparison between a counter-rotating axial-flow fan and a conventional rotor-stator stage 
      Communication avec acte
      WANG, Juan; ccRAVELET, Florent; ccBAKIR, Farid (2013)
      Based on the requirement of energy consumption level and weight and dimension restriction, compact axial machines are highly demanded in many industrial fields. The counter-rotating axial-flow fans could be a promising way ...