Now showing items 21-26 of 26

  • On the wake transition in the flow past a circular cylinder at critical Reynolds numbers 

    Rodríguez Pérez, Ivette María; Lehmkuhl Barba, Oriol; Chiva Segura, Jorge; Borrell Pol, Ricard; Oliva Llena, Asensio (Centre Internacional de Mètodes Numèrics en Enginyeria (CIMNE), 2014)
    Conference report
    Open Access
  • Optimising the Termofluids CFD code for petascale simulations 

    Borrell Pol, Ricard; Chiva Segura, Jorge; Lehmkuhl Barba, Oriol; Oyarzun Altamirano, Guillermo; Rodríguez Pérez, Ivette María; Oliva Llena, Asensio (2016)
    Article
    Open Access
    This paper presents some recent efforts carried out on the expansion of the scalability of TermoFluids multi-physics Computational Fluid Dynamics (CFD) code, aiming to achieve petascale capacity for a single simulation. ...
  • Parallel adaptive mesh refinement for large-eddy simulations of turbulent flows 

    Antepara Zambrano, Óscar; Lehmkuhl Barba, Oriol; Borrell Pol, Ricard; Chiva Segura, Jorge; Oliva Llena, Asensio (Elsevier, 2015-03-30)
    Article
    Open Access
    In this paper a parallel adaptive mesh refinement (AMR) strategy for large eddy simulations (LES) of turbulent flows is presented. The underlying discretization of the Navier-Stokes equations is based on a finite-volume ...
  • The effects of roughness on the boundary layer development of a circular cylinder 

    Rodríguez Pérez, Ivette María; Lehmkuhl Barba, Oriol; Piomelli, Ugo; Chiva Segura, Jorge; Borrell, Ricard; Oliva Llena, Asensio (European Research Community on Flow, Turbulence, and Conbustion (ERCOFTAC), 2017)
    Conference report
    Restricted access - publisher's policy
    This paper focuses on the effects of surface roughness in the flow past a circular cylinder at different Reynolds numbers. Large eddy simulations of the flow, from subcritical to transcritical Reynolds numbers and at ...
  • Turbulent natural convection in an open cavity: a numerical study 

    Chiva Segura, Jorge; Soria Guerrero, Manel; Oliva Llena, Asensio; Lehmkuhl Barba, Oriol (2009)
    Conference lecture
    Restricted access - publisher's policy
    In this paper three-dimensional turbulent natural convection heat transfer in a simplified solar receiver open cavity is studied. Smagorinsky-LES (Large Eddy Simulation) model is chosen for turbulence flow computation. The ...
  • Unsteady forces on a circular cylinder at critical Reynolds numbers 

    Lehmkuhl Barba, Oriol; Rodríguez Pérez, Ivette María; Borrell, Ricard; Chiva Segura, Jorge; Oliva Llena, Asensio (2014-12-23)
    Article
    Open Access
    It is well known that the flow past a circular cylinder at critical Reynolds number combines flow separation, turbulence transition, reattachment of the flow, and further turbulent separation of the boundary layer. The ...