Numerical Efficiency Assessment of IB-LB Method for 3D Pore-Scale Modeling of Flow and Transport

Abstract : In many earth science and environmental problems, the fluid-structure interactions can affect the hydrodynamics properties of the porous medium via the spatial evolution of its solid matrix. A significant insight into these properties can be obtained from pore-scale simulations. Using a 3D pore-scale domain with moving walls, we proposed in this paper a comparison of the numerical accuracy between different approaches in regard to flow and reactive transport. Two direct-forcing immersed boundary (IB) models coupled with lattice Boltzmann method (LBM) are evaluated for the flow calculation against an analytical solution. The IB-LBM showed improvement compared to the classical and interpolated bounce-back lattice Boltzmann model. Concerning the reactive transport, the most accurate IB-LB method was coupled with two non-boundary conforming finite volume methods (volume of fluid and reconstruction). The comparative study performed with different mesh sizes and Damkohler numbers demonstrates better results for the reconstruction method.
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Submitted on : Monday, February 15, 2016 - 4:13:47 PM
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Marbe Benioug, Fabrice Golfier, Anne-Julie Tinet, M. A. Bues, Constantin Oltean. Numerical Efficiency Assessment of IB-LB Method for 3D Pore-Scale Modeling of Flow and Transport. Transport in Porous Media, Springer Verlag, 2015, 109 (1), pp.1-23. ⟨10.1007/s11242-015-0497-6⟩. ⟨hal-01274256⟩

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