We present a strategy for generating curved, high-order, hybrid meshes that consist of a combination of prismatic layers close to the body and unstructured elements in the rest of the domain. Such curved meshes are required for high-order discretizations, but they are difficult to generate and adapt, in particular when anisotropic elements are desired next to curved geometries. To address the problem of possible inversions in this region, the proposed strategy grows prismatic, anisotropic layers of elements close to the geometry, using a metric to dictate the element sizing and starting with a metric-conforming surface mesh. The curvature of the elements attenuates as the layers grow, and the prismatic regions end once linear faces are possible. A linear unstructured mesh fills the remaining portion of the domain, and it is generated using a simple, metric-based advancing-front algorithm. The strategy is implemented in an adaptive solution process by using an existing mesh as a scaffold for metric evaluation. Results are presented for two-dimensional problems in an output-based adaptive setting. Comparisons with global remeshing show similar performance in output convergence, mesh quality, and aspect-ratio distributions and improved robustness and efficiency due to lack of a separate mesh curving step.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    A Prismatic-Layer Advancing-Front Approach to Anisotropic Metric-Based Curved Mesh Generation


    Contributors:

    Published in:

    AIAA Journal ; 63 , 1 ; 184-197


    Publication date :

    2025-01-01




    Type of media :

    Conference paper , Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English





    Advancing Layer Surface Mesh Generation

    Singh, Jasmeet / Ollivier Gooch, Carl F. | AIAA | 2020


    A closed advancing-layer method for generating curved boundary layer mesh

    Feuillet, Rémi / Marcum, David / Alauzet, Frederic | AIAA | 2019


    Error Minimization via Metric-Based Curved-Mesh Adaptation

    Sanjaya, Devina P. / Fidkowski, Krzysztof / Diosady, Laslo T. et al. | AIAA | 2017