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2014
- handle: 10670/1.ikoe9b
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Mots-clés
Porous media ; discrete element method ; permeability ; marker and cell method ; tortuositySujets proches
Porous mediaCiter ce document
Varvara Roubtsova et al., « 3D Numerical Simulations of Particle-Water Interaction Using Virtual Approach », Journées de l'hydraulique, ID : 10670/1.ikoe9b
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Résumé
Three dimensional flow of Newtonian fluid through porous media consisting of multi-sized perfect spherical beads is numerically simulated. Porous media was virtually generated randomly in accordance with a particle size distribution, and all physical features of the porous media are fully represented and considered in order to closely mimic the heterogeneity of the porous media. Simulations show that smallest particles have a strong effect on streamlines shape by imposing small pores and small throats and provide the shortest path. The third dimension has also an effect that allows the streamlines to follow the least resistant path where the lowest energy is required to produce the motion of fluid particle. With the 3D images accomplished, the proposed model provide a three dimensional representation of the streamlines and their velocity magnitude. Unfortunately, the current results don’t agree well with those proposed in the literature. So there is a strong need to verify these results by more