Dynamique des Fluides (DynFluid): Recent submissions

Now showing items 155-161 of 297

    • 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 ...
    • 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 ...
    • Modal and nonmodal stability of a stably stratified boundary layer flow 
      Article dans une revue avec comité de lecture
      PARENTE, Enza; DE PALMA, Pietro; CHERUBINI, Stefania; ccROBINET, Jean-Christophe (American Physical Society, 2020)
      The modal and nonmodal linear stability of a stably stratified Blasius boundary layer flow, composed of a velocity and a thermal boundary layer, is investigated. The temporal and spatial linear stability of such flow is ...
    • High-Order Hybrid RANS/LES Strategy for Industrial Applications 
      Chapitre d'ouvrage scientifique
      PONT, G.; CINNELLA, Paola; BRENNER, Pierre; ccROBINET, Jean-Christophe (Springer, 2017)
      Turbulent flows of industrial interest are often dominated by large turbulent structures. A typical example is provided by launcher base flows, combining one or more extended and interacting separated regions with strong ...
    • 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, ...
    • 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 ...
    • Global Instability in Shock Wave Laminar Boundary-Layer Interaction 
      Communication avec acte
      GUIHO, F.; ALIZARD, Frédéric; ccROBINET, Jean-Christophe (Springer, 2015)
      The linear global stability of an interaction between an oblique shock wave and a laminar boundary layer is carried out for various oblique shock angles. It is illustrated that such a flow acts as a noise amplifier. The ...