Dynamique des Fluides (DynFluid): Recent submissions

Now showing items 211-217 of 295

    • 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 ...
    • 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 ...
    • 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 ...
    • 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 ...
    • 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 ...