Numerical methods for simulating the motion of porous balls in simple 3D shear flows under creeping conditions

摘要

In this article, two novel numerical methods have been developed forsimulating fluid/porous particle interactions in three-dimensional (3D) Stokesflow. The Brinkman-Debye-Bueche model is adopted for the fluid flow inside theporous particle, being coupled with the Stokes equations for the fluid flowoutside the particle. The rotating motion of a porous ball and the interactionof two porous balls in bounded shear flows have been studied by these two newmethods. The numerical results show that the porous particle permeability has astrong effect on the interaction of two porous balls.