A coupled immersed boundary method for simulating multiphase flows
Journal Title: Acta Electronica Malaysia (AEM) - Year 2017, Vol 1, Issue 1
Abstract
A numerical methodology is presented for simulating 3D multiphase flows through complex geometries on a non-body conformal Cartesian computational grid. A direct forcing implicit immersed boundary method (IBM) is used to sharply resolve complex geometries, employing the finite volume method (FVM) on a staggered grid. The fluid-fluid interface is tracked by a mass conservative sharp interface volume of fluid (VOF) method. Contact line dynamics at macroscopic length scale is simulated by imposing the apparent contact angle (static or dynamic) as a boundary condition at the three-phase contact line. The developed numerical methodology is validated for several test cases including the equilibrium shape of a droplet on flat and spherical surfaces, the temporal evolution of a droplet spreading on a flat surface. The obtained results show an excellent correspondence with those derived analytically or taken from literature. Furthermore, the present model is used to estimate, on a pore-scale, the residual oil remaining in idealized porous structures after water flooding, similar to the process used in enhanced oil recovery (EOR).
Authors and Affiliations
He Zhenga, Gu Xuana, Sun Xiaoyua, Liu Jua, Wang Bin-Sheng
Keywords
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- EP ID EP402773
- DOI 10.26480/aem.01.2017.05.08
- Views 99
- Downloads 0
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