Dynamique des Fluides (DynFluid): Soumissions récentes

Voici les éléments 218-224 de 295

    • Dynamical selective ltering for the Lattice Boltzmann Method 
      Communication avec acte
      MARIÉ, Simon; ccGLOERFELT, Xavier (AIAA, 2015)
      In this study, a new selective ltering technique is proposed for the Lattice Boltzmann Method. This technique is based on dynamical implementation of the selective filter coefficient . The proposed model makes the latter ...
    • POD study of aerated cavitation in a venturi nozzle 
      Communication avec acte
      TOMOV, Petar; DANLOS, Amélie; ccRAVELET, Florent; ccSARRAF, Christophe; ccBAKIR, Farid; ccKHELLADI, Sofiane (IOP sciences conference series, 2015)
      The fact of injecting bubbles into a cavitating flow influences typical cavitating behavior. Cavitation and aerated cavitation experiments has been carried out on a symmetrical venturi nozzle with convergent/divergent ...
    • Minimal-energy perturbations rapidly approaching the edge state in Couette flow 
      Article dans une revue avec comité de lecture
      CHERUBINI, Stefania; DE PALMA, Pietro (Cambridge University Press (CUP), 2015)
      Transition to turbulence in shear flows is often subcritical, thus the dynamics of the flow strongly depends on the shape and amplitude of the perturbation of the laminar state. In the state space, initial perturbations ...
    • Nonlinear optimals in the asymptotic suction boundary layer: Transition thresholds and symmetry breaking 
      Article dans une revue avec comité de lecture
      CHERUBINI, Stefania; DE PALMA, Pietro; ccROBINET, Jean-Christophe (American Institute of Physics, 2015)
      The effect of a constant homogeneous wall suction on the nonlinear transient growth of localized finite amplitude perturbations in a boundary-layer flow is investigated. Using a variational technique, nonlinear optimal ...
    • Effect of plate permeability on nonlinear stability of the asymptotic suction boundary layer 
      Article dans une revue avec comité de lecture
      WEDIN, Hakan; CHERUBINI, Stefania; BOTTARO, Alessandro (American Physical Society, 2015)
      The nonlinear stability of the asymptotic suction boundary layer is studied numerically, searching for finite-amplitude solutions that bifurcate from the laminar flow state. By changing the boundary conditions for disturbances ...
    • Hairpin-like optimal perturbations in plane Poiseuille flow 
      Article dans une revue avec comité de lecture
      FARANO, Mirko; CHERUBINI, Stefania; DE PALMA, Pietro; ccROBINET, Jean-Christophe (Cambridge University Press (CUP), 2015)
      In this work it is shown that hairpin vortex structures can be the outcome of a nonlinear optimal growth process, in a similar way as streaky structures can be the result of a linear optimal growth mechanism. With this ...
    • Review and Perspectives: Shape Memory Alloy Composite Systems 
      Article dans une revue avec comité de lecture
      LESTER, Brian; BAXEVANIS, Theocaris; CHEMISKY, Yves; LAGOUDAS, Dimitris (Springer Verlag, 2015)
      Following their discovery in the early 60's, there has been a continuous quest for ways to take advantage of the extraordinary properties of shape memory alloys (SMAs). These intermetallic alloys can be extremely compliant ...