Recent Submissions

  • Assessment of LES techniques for mitigating the Grey Area in DDES models 

    Pont Vilchez, Arnau; Santos Serrano, Daniel; Trias Miquel, Francesc Xavier; Duben, Alexey; Revell, Alistair; Oliva Llena, Asensio (2019)
    Conference report
    Open Access
    The slow RANS-LES transition is a well-known shortcoming in hybrid turbulence models such as DelayedDetached Eddy Simulation (DDES). The present work assesses the feasibility of 2D sensitive LES models for naturally ...
  • Improving DES capabilities for predicting Kelvin-Helmholtz instabilities. Comparison with a backward-facing step DNS. 

    Pont Vilchez, Arnau; Trias Miquel, Francesc Xavier; Duben, Alexey; Revell, Alistair; Oliva Llena, Asensio (2020-05-10)
    Conference report
    Restricted access - publisher's policy
    The Detached Eddy Simulation (DES) turbulence model presented by Spalart et al. (Comments on the Feasibility of LES for Wings, and on a Hybrid RANS/LES Approach, [1]) in the late 90s, was specifically designed to simulate ...
  • On the Feasibility of CFD for Transient Air Flow Simulations in Buildings 

    Morozova, Nina; Capdevila Paramio, Roser; Trias Miquel, Francesc Xavier; Oliva Llena, Asensio (2019)
    Conference report
    Restricted access - publisher's policy
    The rapidly growing computational capacity hasmade CFD simulations an attractive tool for indoorenvironmental applications. The ability of CFD toperform transient simulations could be incorporatedinto model predictive ...
  • A pure virtual approach for managing platform portability on hybrid supercomputers 

    Álvarez Farré, Xavier; Gorobets, Andrey; Alsati Baldellou, Àdel; Trias Miquel, Francesc Xavier (2019)
    Conference report
    Restricted access - publisher's policy
    Commonly, the development of scientific computing software follows a stencilbased approach: the numerical methods and algorithms are introduced into computing systems through stencil data structures and sweeps (i.e. ...
  • Detailed prediction of fluid-solid coupled phenomena of turbulent flow through reed valves 

    González Acedo, Ignacio; Naseri, Alireza; Rigola Serrano, Joaquim; Pérez Segarra, Carlos David; Oliva Llena, Asensio (Institute of Physics (IOP), 2019)
    Conference report
    Open Access
    The operation of self-actuated valves in suction and discharge processes plays a crucial role in the thermal efficiency and structural reliability of hermetic reciprocating compressors. The present work provides a thorough ...
  • Assessment and comparison of a recent kinematic sensitive subgrid length scale in Hybrid RANS-LES 

    Pont Vilchez, Arnau; Trias Miquel, Francesc Xavier; Revell, Alistair; Oliva Llena, Asensio (Springer Nature, 2020)
    Conference report
    Restricted access - publisher's policy
    A recent kinematic sensitive subgrid length scale, Δlsq, initially developed for LES applications, is now considered for DES. Even though it is presented as a subgrid length scale, instead of a grey area mitigation (GAM) ...

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