This paper presents an approach to mesh adaptation suitable for scale-resolving simulations. The methodology is based on the entropy-adjoint approach, which corresponds to a standard output-based adjoint method with the output functional targeting areas of spurious generation of entropy. The method shows several advantages over standard output-based error estimation: 1) it is computationally inexpensive; 2) it does not require the solution of a fine-space adjoint problem; and 3) it is nonlinearly stable with respect to the primal solution for chaotic dynamic systems. In addition, the work reports on the parallel efficiency of the solver, which has been optimized through a multiconstraint domain decomposition algorithm available within the Metis 5.0 library. The reliability, accuracy, and efficiency of the approach are assessed by computing three test cases: the two-dimensional, laminar, chaotic flow around a square at Re = 3000 ; and the implicit large-eddy simulation of the flow past a circular cylinder at Re = 3900 and past a square cylinder at Re = 22 , 000 . The results show a significant reduction in the number of degrees of freedom with respect to uniform order refinement with a good agreement with experimental data.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Entropy-Adjoint p -Adaptive Discontinuous Galerkin Method for the Under-Resolved Simulation of Turbulent Flows



    Erschienen in:

    AIAA Journal ; 58 , 9 ; 3963-3977


    Erscheinungsdatum :

    01.09.2020




    Medientyp :

    Aufsatz (Konferenz) , Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    An entropy-adjoint p-adaptive discontinuous Galerkin method for the under-resolved simulation of turbulent flows

    Bassi, Francesco / Colombo, Alessandro / Crivellini, Andrea et al. | AIAA | 2019


    AIAA-2019-3418: An Entropy-adjoint P-adaptive Discontinuous Galerkin Method For The Under-resolved Simulation of Turbulent Flows

    Bassi, Francesco / Colombo, Alessandro / Crivellini, Andrea et al. | British Library Conference Proceedings | 2019


    An Adjoint-Based hp-Adaptive Petrov-Galerkin Method for Turbulent Flows

    Reza Ahrabi, Behzad / Anderson, William K. / Newman, James C. | AIAA | 2015


    Adjoint-Consistency of Spacetime Discontinuous Galerkin Discretizations for Incompressible Flows

    Kercher, Andrew D. / Corrigan, Andrew T. / Kessler, David A. et al. | AIAA | 2016


    An Adjoint-Based hp-Adaptive Petrov-Galerkin Method for Turbulent Flows (AIAA 2015-2603)

    Ahrabi, Behzad Reza / Anderson, William K. / Newman, James C. | British Library Conference Proceedings | 2015