Dynamique des Fluides (DynFluid): Recent submissions

Now showing items 211-217 of 291

    • Bayesian estimates of parameter variability in the k − ε turbulence model 
      Article dans une revue avec comité de lecture
      EDELING, Wouter Nico; CINNELLA, Paola; DWIGHT, Richard P.; BIJL, H. (Elsevier, 2014)
      In this paper we are concerned with obtaining estimates for the error in Reynolds-Averaged Navier-Stokes (RANS) simulations based on the Launder-Sharma k−ε turbulence closure model, for a limited class of flows. In particular ...
    • Performance gains provided by the use of a counter-rotating axial-flow fan with respect to a conventional rotor-stator stage 
      Article dans une revue avec comité de lecture
      WANG, Juan; ccRAVELET, Florent; ccBAKIR, Farid (Ethan Publishing Company, USA, 2015)
      The adoption of counter-rotating stages for propellers, axial-flow pumps and low-speed fans has opened a way to design high performance and compact turbomachines in various industrial domains, leading to potentially high ...
    • Critical evaluation of three hemodynamic models for the numerical simulation of intra-stent flows 
      Article dans une revue avec comité de lecture
      CHABI, Fatiha; NOGUERA, Ricardo; ccCHAMPMARTIN, Stephane; ccSARRAF, Christophe (Elsevier, 2015)
      We evaluate here three hemodynamic models used for the numerical simulation of bare and stented artery flows. We focus on two flow features responsible for intra-stent restenosis: the wall shear stress and the re-circulation ...
    • Early evolution of the compressible mixing layer issued from two turbulent streams 
      Article dans une revue avec comité de lecture
      PIROZZOLI, Sergio; BERNARDINI, Matteo; MARIÉ, Simon; GRASSO, Francesco (Cambridge University Press (CUP), 2015)
      Direct numerical simulation of the spatially developing mixing layer issuing from two turbulent streams past a splitter plate is carried out under mild compressibility conditions. The study mainly focuses on the early ...
    • 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 ...