Application of a Eulerian two-phase flow model to scour processes

Antoine Mathieu , Tim Nagel , Cyrille Bonamy (1) , Julien Chauchat (1) , Zhen Cheng , Xiaofeng Liu (2) , Tian-Jian Hsu (3)

1 LEGI - Laboratoire des Écoulements Géophysiques et Industriels [Grenoble]
2 Penn State - Pennsylvania State University
3 University of Delaware [Newark]

In this paper, the application of a two-phase flow model to scour processes is presented. The model is first calibrated against experimental data of unidirectional sheet-flow (one-dimensional configuration). The model is then applied to multi-dimensional configurations for the scour under a submarine pipeline and around a vertical pile. The results show that quantitative results can be obtained at the upstream sides of structures, the lee-wake erosion driven by the vortex shedding deserves further research.

Domaines: Mécanique des fluides [physics.class-ph]; Dynamique des Fluides [physics.flu-dyn]; Calcul parallèle, distribué et partagé [cs.DC]; Sciences de l'environnement

Antoine Mathieu, Tim Nagel, Cyrille Bonamy, Julien Chauchat, Zhen Cheng, et al.. Application of a Eulerian two-phase flow model to scour processes. River Flow 2018 - Ninth International Conference on Fluvial Hydraulics, Sep 2018, Lyon-Villeurbanne, France. ⟨10.1051/e3sconf/20184005015⟩. ⟨hal-01882779⟩