Fingering patterns in hierarchical porous media
Si Suo, Mingchao Liu, Yixiang Gan
Abstract
Fingering during fluid-fluid displacement in porous media can be governed by two primitive parameters---capillary number and mobility ratio. Here, for porous media consisting of two or more distinguishable scales of pores, the dynamics of immiscible fingering under the influences of hierarchical structures are unravelled. In particular, the conditions under which the fingering pattern mode can be switched and controlled as a result of secondary pore structures are presented.
Topics & Concepts
Viscous fingeringPorous mediumMaterials scienceDisplacement (psychology)PorosityDynamics (music)Mode (computer interface)MechanicsFlow (mathematics)Biological systemTheoretical and Computational PhysicsFluid Dynamics and Thin FilmsAdvanced Mathematical Modeling in Engineering