Dynamique des Fluides (DynFluid): Recent submissions

Now showing items 57-63 of 295

    • Lattice Boltzmann method for miscible gases: A forcing-term approach 
      Article dans une revue avec comité de lecture
      VIENNE, Lucien; MARIÉ, Simon; GRASSO, Francesco (American Physical Society (APS), 2019)
      A lattice Boltzmann method for miscible gases is presented. In this model, the standard lattice Boltzmann method is employed for each species composing the mixture. Diffusion interaction among species is taken into account ...
    • Laminar supersonic sphere wake unstable bifurcations 
      Article dans une revue avec comité de lecture
      SANSICA, A.; OHMICHI, Y.; HASHIMOTO, A.; ccROBINET, Jean-Christophe (American Institute of Physics, 2020)
      The laminar sphere unstable bifurcations are sought at a Mach number of M∞ = 1.2. Global stability performed on steady axisymmetric base flows determines the regular bifurcation critical Reynolds number at Rereg cr = 650, ...
    • Simulation of Viscous Fingering Instability by the Lattice Boltzmann Method 
      Communication avec acte
      VIENNE, Lucien; MARIE, Simon; GRASSO, Francesco (American Institute of Aeronautics and Astronautics, 2019)
      The viscous fingering instability is successfully simulated within a lattice Boltzmann framework. Each species of the mixture is governed by its own kinetic equation and a force takes into account the diffusion between ...
    • On the linear receptivity of trailing vortices 
      Article dans une revue avec comité de lecture
      BÖLLE, Tobias; BRION, Vincent; SIPP, Denis; JACQUIN, Laurent; ccROBINET, Jean-Christophe (Cambridge University Press (CUP), 2020)
      The present work investigates the excitation process by which free-stream disturbances are transformed into vortex-core perturbations. This problem of receptivity is modelled in terms of the resolvent in frequency space ...
    • Optimal transient growth in compressible turbulent boundary layers 
      Article dans une revue avec comité de lecture
      ALIZARD, Frédéric; PIROZZOLI, Sergio; BERNARDINI, Matteo; GRASSO, Francesco (Cambridge University Press (CUP), 2015)
      The structure of zero-pressure-gradient compressible turbulent boundary layers is analysed using the tools of optimal transient growth theory. The approach relies on the extension to compressible flows of the theoretical ...
    • The influence of a pressure wavepacket's characteristics on its acoustic radiation 
      Article dans une revue avec comité de lecture
      SERRÉ, R.; MARGNAT, F.; ccROBINET, Jean-Christophe (Acoustical Society of America, 2015)
      Noise generation by flows is modeled using a pressure wavepacket to excite the acoustic medium via a boundary condition of the homogeneous wave equation. The pressure wavepacket is a generic representation of the flow ...
    • Weakly nonlinear optimal perturbations 
      Article dans une revue avec comité de lecture
      PRALITS, Jan O.; BOTTARO, Alessandro; CHERUBINI, Stefania (Cambridge University Press (CUP), 2015)
      A simple approach is described for computing spatially extended, weakly nonlinear optimal disturbances, suitable for maintaining a disturbance-regeneration cycle in a simple shear flow. Weakly nonlinear optimals, computed ...