Dynamique des Fluides (DynFluid): Soumissions récentes

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    • Numerical investigation of dense gas flows through transcritical multistage axial Organic Rankine Cycle turbines 
      Communication avec acte
      CINNELLA, Paola; ccSCIACOVELLI, Luca (2013)
      Many recent studies suggest that supercritical Organic Rankine Cycles have a great potential for lowtemperature heat recovery applications, since they allow better recovery efficiency for a simplified cycle architecture. ...
    • Toward improved simulation tools for compressible turbomachinery: assessment of RBC schemes for the transonic NASA Rotor 37 benchmark case 
      Communication avec acte
      CINNELLA, Paola; MICHEL, Bruno (2013)
      Residual-based-compact schemes (RBC) of 2nd and 3rd-order accuracy are applied to a challenging 3D ow through a transonic compressor. The proposed schemes provide almost mesh-converged solutions in good agreement with ...
    • The minimal seed of turbulent transition in the boundary layer 
      Article dans une revue avec comité de lecture
      CHERUBINI, Stefania; DE PALMA, Pietro; BOTTARO, Alessandro; ccROBINET, Jean-Christophe (Cambridge University Press (CUP), 2011)
      This paper describes a scenario of transition from laminar to turbulent flow in a spatially developing boundary layer over a flat plate. The base flow is the Blasius non-parallel flow solution; it is perturbed by optimal ...
    • Nonlinear optimal perturbations in a Couette flow: bursting and transition 
      Article dans une revue avec comité de lecture
      CHERUBINI, Stefania; DE PALMA, Pietro (Cambridge University Press (CUP), 2013)
      This paper provides the analysis of bursting and transition to turbulence in a Couette flow, based on the growth of nonlinear optimal disturbances. We use a global variational procedure to identify such optimal disturbances, ...
    • Sensitivity and optimal forcing response in separated boundary layer flows 
      Article dans une revue avec comité de lecture
      ALIZARD, Frédéric; CHERUBINI, Stefania; ccROBINET, Jean-Christophe (American Institute of Physics, 2009)
      The optimal asymptotic response to time harmonic forcing of a convectively unstable two-dimensional separated boundary layer on a flat plate is numerically revisited from a global point of view. By expanding the flow ...
    • A purely nonlinear route to transition approaching the edge of chaos in a boundary layer 
      Article dans une revue avec comité de lecture
      CHERUBINI, Stefania; DE PALMA, Pietro; BOTTARO, Alessandro; ccROBINET, Jean-Christophe (IOP Publishing, 2012)
      The understanding of transition in shear flows has recently progressed along new paradigms based on the central role of coherent flow structures and their nonlinear interactions. We follow such paradigms to identify, by ...
    • Edge states in a boundary layer 
      Article dans une revue avec comité de lecture
      CHERUBINI, Stefania; DE PALMA, Pietro; BOTTARO, Alessandro; ccROBINET, Jean-Christophe (American Institute of Physics, 2011)
      The understanding of laminar-turbulent transition in shear flows has recently progressed along new paradigms based on the central role of nonlinear exact coherent states. We follow such paradigms to identify, for the first ...