Dynamique des Fluides (DynFluid): Recent submissions

Now showing items 225-231 of 297

    • Convergence of Fourier-based time methods for turbomachinery wake passing problems 
      Article dans une revue avec comité de lecture
      GOMAR, Adrien; BOUVY, Quentin; SICOT, Frédéric; DUFOUR, Guillaume; CINNELLA, Paola; FRANCOIS, Benjamin (Elsevier, 2014)
      The convergence of Fourier-based time methods applied to turbomachinery flows is assessed. The focus is on the harmonic balance method, which is a timedomain Fourier-based approach standing as an efficient alternative to ...
    • 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 ...
    • Numerical Study of Multistage Transcritical Organic Rankine Cycle Axial Turbines 
      Article dans une revue avec comité de lecture
      CINNELLA, Paola; ccSCIACOVELLI, Luca (American Society of Mechanical Engineers, 2014)
      Transonic flows through axial, multi-stage, transcritical ORC turbines, are investigated by using a numerical solver including advanced multiparameter equations of state and a high-order discretization scheme. The working ...
    • Bayesian quantification of thermodynamic uncertainties in dense gas flows 
      Article dans une revue avec comité de lecture
      MERLE, Xavier; CINNELLA, Paola (Elsevier, 2015)
      A Bayesian inference methodology is developed for calibrating complex equations of state used in numerical fluid flow solvers. Precisely, the input parameters of three equations of state commonly used for modeling the ...
    • 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 ...
    • 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 ...
    • Multi-Size-Mesh, Multi-Time-Step Algorithm for Noise Computation on Curvilinear Meshes 
      Article dans une revue avec comité de lecture
      LE GARREC, Thomas; CORRE, Christophe; ccGLOERFELT, Xavier (Wiley, 2013)
      Aeroacoustic problems are often multi-scale and a zonal refinement technique is thus desirable to reduce computational effort while preserving low dissipation and low dispersion errors from the numerical scheme. For that ...