Dynamique des Fluides (DynFluid): Recent submissions

Now showing items 85-91 of 291

    • Silent inflow condition for turbulent boundary layers 
      Article dans une revue avec comité de lecture
      ccROBINET, Jean-Christophe; ccGLOERFELT, Xavier (American Physical Society, 2017)
      The generation of a turbulent inflow is a tricky problem. In the framework of aeroacoustics, another important constraint is that the numerical strategy used to reach a turbulent state induces a spurious noise which is ...
    • Closed-loop control of a free shear flow: a framework using the parabolized stability equations 
      Article dans une revue avec comité de lecture
      SASAKI, Kenzo; TISSOT, Gilles; CAVALIERI, André V. G.; SILVESTRE, Flávio J.; JORDAN, Peter; ccBIAU, Damien (Springer Verlag, 2018)
      In this study the parabolized stability equations (PSE) are used to build reduced-order-models (ROMs) given in terms of frequency and time-domain transfer functions (TFs) for application in closed-loop control. The control ...
    • 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 ...
    • Large eddy simulation of turbomachinery flows using a high-order implicit residual smoothing scheme 
      Article dans une revue avec comité de lecture
      HOARAU, Jean-Christophe; CINNELLA, Paola; ccGLOERFELT, Xavier (Elsevier, 2020)
      A recently developed fourth-order accurate implicit residual smoothing scheme (IRS4) is investigated for the large eddy simulation of turbomachinery flows, characterized by moderate to high Reynolds numbers and subject to ...
    • 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 ...