Numerical simulation of wave impact on a rigid wall using a two-phase compressible SPH method
Résumé
In this paper, an SPH method based on the SPH--ALE formulation is used for modelling two-phase flows with large density ratios and realistic sound speeds. The SPH scheme is further improved to circumvent the tensile instability that may occur in the SPH simulations. The two-phase SPH solver is then used to model a benchmark problem of liquid impact on a rigid wall. The results are compared with an incompressible Level Set solver. Furthermore, a wave impact on a rigid wall with a large entrained air pocket is modelled. The SPH simulation is initialised by the output of a fully non-linear potential flow solver. The pressure distribution, velocity field and impact pressure are then analysed.
Domaines
Mécanique des fluides [physics.class-ph] Mécanique des fluides [physics.class-ph] Océan, Atmosphère Milieux fluides et réactifs Géophysique [physics.geo-ph] Géophysique [physics.geo-ph] Milieux et Changements globaux Analyse numérique [math.NA] Physique Numérique [physics.comp-ph] Dynamique des Fluides [physics.flu-dyn] Analyse numérique [cs.NA] Physique Atmosphérique et Océanique [physics.ao-ph]
Origine : Fichiers produits par l'(les) auteur(s)