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Multiphase smoothed particle hydrodynamics approach for modeling soil–water interactions

Résumé : In this work, a weakly compressible smoothed particle hydrodynamics (WCSPH) multiphase model is developed. The model is able to deal with soil-water interactions coupled in a strong and natural form. A Regularized Bingham Plastic constitutive law including a pressure-dependent Mohr-Coulomb yield criterion (RBPMC-αμ) is proposed to model fluids, soils and their interaction. Since the proposed rheology model is pressure-sensitive, we propose a multiphase diffusive term to reduce the spurious pressure resulting from the weakly compressible flow hypothesis. Several numerical benchmarks are investigated to assess the robustness and accuracy of the proposed multiphase SPH model.
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Abdelkader Krimi, Sofiane Khelladi, Xesús Nogueira, Michael Deligant, Riadh Ata, et al.. Multiphase smoothed particle hydrodynamics approach for modeling soil–water interactions. Advances in Water Resources, Elsevier, 2018, 121, pp.189-205. ⟨10.1016/j.advwatres.2018.08.004⟩. ⟨hal-02438193⟩

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