SedFoam-2.0 : a 3-D two-phase flow numerical model for sediment transport Chauchat, Julien Cheng, Zhen Nagel, Tim Bonamy, Cyrille Hsu, Tian-Jian 2017-12-18T18:44:19Z 2017-12-18T18:44:19Z 2017-11-30
dc.description © The Author(s), 2017. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Geoscientific Model Development 10 (2017): 4367–4392, doi:10.5194/gmd-10-4367-2017. en_US
dc.description.abstract In this paper, a three-dimensional two-phase flow solver, SedFoam-2.0, is presented for sediment transport applications. The solver is extended from twoPhaseEulerFoam available in the 2.1.0 release of the open-source CFD (computational fluid dynamics) toolbox OpenFOAM. In this approach the sediment phase is modeled as a continuum, and constitutive laws have to be prescribed for the sediment stresses. In the proposed solver, two different intergranular stress models are implemented: the kinetic theory of granular flows and the dense granular flow rheology μ(I). For the fluid stress, laminar or turbulent flow regimes can be simulated and three different turbulence models are available for sediment transport: a simple mixing length model (one-dimensional configuration only), a k − ε, and a k − ω model. The numerical implementation is demonstrated on four test cases: sedimentation of suspended particles, laminar bed load, sheet flow, and scour at an apron. These test cases illustrate the capabilities of SedFoam-2.0 to deal with complex turbulent sediment transport problems with different combinations of intergranular stress and turbulence models. en_US
dc.description.sponsorship Julien Chauchat, Tim Nagel, and Cyrille Bonamy are supported by the Region Rhones-Alpes (COOPERA project and Explora Pro grant), the French national programme EC2CO-LEFE MODSED. Zhen Cheng and Tian-Jian Hsu are supported by National Science Foundation (OCE-1537231; OCE-1635151) and Office of Naval Research (N00014-16-1-2853) of USA. en_US
dc.identifier.citation Geoscientific Model Development 10 (2017): 4367–4392 en_US
dc.identifier.doi 10.5194/gmd-10-4367-2017
dc.language.iso en en_US
dc.publisher Copernicus Publications on behalf of the European Geosciences Union en_US
dc.rights Attribution 3.0 Unported
dc.title SedFoam-2.0 : a 3-D two-phase flow numerical model for sediment transport en_US
dc.type Article en_US
dspace.entity.type Publication
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