A penalization technique applied to the "Volume-Of-Fluid" method: wettability condition on immersed boundaries

Abstract : A penalization approach is presented to simulate two-phase flow in the presence of immersed solid boundaries so as to consider highly complex objects such as porous media microstructures. Based on the standard Volume-Of-Fluid formulation, the method takes into account the wettability effects which may occur on the surface of immersed solid boundaries. A spatial shift between the no-slip and the wettability conditions is introduced to make the method stable, regardless of the simulation parameters. The penalized VOF model and the numerical choices are then validated by a series of tests on capillary-dominated flows, which represent the most challenging cases for VOF simulations.
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Pierre Horgue, Marc Prat, Michel Quintard. A penalization technique applied to the "Volume-Of-Fluid" method: wettability condition on immersed boundaries. Computers and Fluids, Elsevier, 2014, vol. 100, pp. 255-266. ⟨10.1016/j.compfluid.2014.05.027⟩. ⟨hal-01010612⟩

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