Dynamique des Fluides (DynFluid): Soumissions récentes

Voici les éléments 225-231 de 297

    • 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 ...
    • The first-digit frequencies in data of turbulent flows 
      Article dans une revue avec comité de lecture
      ccBIAU, Damien (Elsevier, 2015)
      Considering the first significant digits (noted image) in data sets of dissipation for turbulent flows, the probability to find a given number (image or 2 or …9) would be 1/9 for a uniform distribution. Instead the probability ...
    • 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 ...
    • Multi-fidelity optimization strategy for the industrial aerodynamic design of helicopter rotor blades 
      Article dans une revue avec comité de lecture
      LEUSINK, Debbie; ALFANO, David; CINNELLA, Paola (Elsevier, 2015)
      The industrial aerodynamic design of helicopter rotor blades needs to consider the two typical flight conditions of hover and forward flight simultaneously. Here, this multi-objective design problem is tackled by using a ...
    • 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 ...
    • 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 ...
    • Experimental investigation on ducted counter-rotating axial flow fans 
      Communication avec acte
      NOURI, Hussain; ccRAVELET, Florent; ccSARRAF, Christophe; ccBAKIR, Farid (ASME, 2011)
      An experimental study on counter-rotating axial-flow fans was carried out. The fans of diameter D = 375 mm were designed using an inverse method. The counter-rotating fans operate in a ducted-flow configuration and the ...