Dynamique des Fluides (DynFluid): Recent submissions

Now showing items 218-224 of 291

    • 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 ...
    • Toward improved simulation tools for compressible turbomachinery: assessment of Residual-Based Compact schemes for the transonic compressor NASA Rotor 37 
      Article dans une revue avec comité de lecture
      CINNELLA, Paola; MICHEL, Bruno (Taylor & Francis, 2014)
      Residual-based-compact schemes (RBC) of 2nd and 3rd-order accuracy are applied to a challenging 3D ow through a transonic compressor. The proposed schemes provide almost mesh-converged solutions in good agreement with ...
    • Predictive RANS simulations via Bayesian Model-Scenario Averaging 
      Article dans une revue avec comité de lecture
      CINNELLA, Paola (Elsevier, 2014)
      The turbulence closure model is the dominant source of error in most Reynolds-Averaged Navier–Stokes simulations, yet no reliable estimators for this error component currently exist. Here we develop a stochastic, a posteriori ...
    • Banc de test pour stent 
      Brevet
      MAUREL, Blandine; LERMUSIAUX, Patrick; ccSARRAF, Christophe; ccBAKIR, Farid (2013)
      L'invention concerne un banc test pour stents, caractérisé en ce qu'il comprend une pompe (2) non volumétrique dont l'entrée est raccordée à un réservoir (4) de liquide sanguin ouvert et dont la sortie est reliée à une ...