Dynamique des Fluides (DynFluid): Soumissions récentes

Voici les éléments 57-63 de 291

    • Restricted nonlinear model for high- and low-drag events in plane channel flow 
      Article dans une revue avec comité de lecture
      ALIZARD, Frédéric; ccBIAU, Damien (Cambridge University Press (CUP), 2019)
      A restricted nonlinear (RNL) model, obtained by partitioning the state variables into streamwise-averaged quantities and superimposed perturbations, is used in order to track the exact coherent state in plane channel flow ...
    • A framework for closed-loop flow control using the parabolized stability equations 
      Communication avec acte
      SASAKI, Kenzo; CAVALIERI, André V. G.; SILVESTRE, Flávio J.; JORDAN, Peter; TISSOT, Gilles; ccBIAU, Damien (American Institute of Aeronautics and Astronautics, 2017)
      We develop a reduced-order-model framework using the parabolized stability equations and identification techniques for the closed-loop control of unsteady fluctuations along fluidic systems. These models had been successfully ...
    • Optimal perturbation for two-dimensional vortex systems: route to non-axisymmetric state 
      Article dans une revue avec comité de lecture
      NAVROSE; JOHNSON, Author H. G.; BRION, Véronique; JACQUIN, Laurent; ccROBINET, Jean-Christophe (Cambridge University Press (CUP), 2018)
      We investigate perturbations that maximize the gain of disturbance energy in a two-dimensional isolated vortex and a counter-rotating vortex pair. The optimization is carried out using the method of Lagrange multipliers. ...
    • Numerical study of the waste heat recovery potential of the exhaust gases from a tractor engine 
      Article dans une revue avec comité de lecture
      PUNOV, Plamen; LACOUR, Stéphanie; PÉRILHON, Christelle; PODEVIN, Pierre; DESCOMBES, Georges; EVTIMOV, Teodossi (SAGE Publications, 2015)
      The paper presents an analysis of the possibilities of exhaust gas heat recovery for a tractor engine with an output power of 110 kW. On the basis of a literature review, the Rankine cycle seems to be the most effective ...
    • Dense-gas effects on compressible boundary-layer stability 
      Article dans une revue avec comité de lecture
      CINNELLA, Paola; GRASSO, Francesco; ccROBINET, Jean-Christophe; ccSCIACOVELLI, Luca; ccGLOERFELT, Xavier (Cambridge University Press (CUP), 2020)
      A study of dense-gas effects on the stability of compressible boundary-layer flows is conducted. From the laminar similarity solution, the temperature variations are small due to the high specific heat of dense gases, ...
    • Invariant solutions in a channel flow using a minimal restricted nonlinear model 
      Article dans une revue avec comité de lecture
      ALIZARD, Frédéric (Elsevier Masson, 2017)
      Simulations using a Restricted Nonlinear (RNL) system, where mean flow distortion resulting from Reynolds stress feedback regenerates rolls, is applied in a channel flow under subcritical conditions. This quasi-linear ...
    • Development and analysis of high-order vorticity confinement schemes 
      Article dans une revue avec comité de lecture
      PETROPOULOS, I.; COSTES, M.; CINNELLA, Paola (ELSEVIER, 2017)
      High-order extensions of the Vorticity Confinement (VC) method are developed for the accurate com- putation of vortical flows, following the VC2 conservative formulation of Steinhoff. First, a high-order formulation of VC ...