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ISSN Печать: 2152-5102
ISSN Онлайн: 2152-5110
Indexed in
Simulation of High-Speed Transonic and Supersonic Flows with Anisotropic Mesh Refinement and Coarsening Strategies
Краткое описание
The simulation of high-speed steady-state compressible flows at transonic and supersonic speed ranges is presented in this work, combining the Characteristic-Based Split scheme (CBS), the Finite Element Method (FEM) and anisotropic unstructured mesh adaptation. The adaptation procedure makes use of the h-adaptation strategy for mesh refinement and coarsening. The refinement step consists of a Riemannian centred split of edges, followed by the partitioning of the elements, covering all anisotropic subdivision possibilities. Coarsening is evaluated through an edge collapse procedure with anisotropic considerations. As a result, anisotropic meshes are obtained using the present strategy without making use of mesh movement (smoothing procedures). The aerodynamic analysis of complex geometries are then evaluated with the present approach and compared with experimental and numerical investigations.