Numerical simulation of scour below pipelines using flexible mesh methods

摘要: Evaluating bed morphological structure and evolution (specifically the scoured level) accurately using numerical models is critical for analyses of stability many marine structures. This paper discusses performance an implementation within Fluidity, open source, general purpose, computational fluid dynamics (CFD) code, capable handling arbitrary multi-scale unstructured tetrahedral meshes including algorithms to perform dynamic anisotropic mesh adaptivity. The flexibility over resolution that these capabilities provide makes it potentially highly suitable coupling structural scale with larger ocean dynamics. In this very preliminary study solver approach demonstrated idealised scenario. Discontinuous Galerkin finite-element (DG-FEM) based discretisation methods have been used hydrodynamics calculations, automatic deformation has utilised account changes while preserving validity quality mesh. future work, will be in three-dimensional impinging jet other industrial environmental scour studies.