ON THE EFFECT OF ASPECT RATIO OF COMPONENT MEMBER ON THE FLOW THROUGH POROUS MEDIA

Abstract

 Various models of the porous media flow have been proposed to quantitatively examine the heat and mass transfer inside and around porous media, and the stability of the porous structures. In most studies, porous media components are approximated by spheres. However, natural gravel layers or artificial wave dissipating structures are composed by ellipsoids. Actually, the flow passing through an ellipsoidal porous media is unknown. In this study, we performed numerical simulation to study the microscopic flow in the porous media composed by ellipsoids using an immersed boundary method. Simulation results show that macroscopic pressure drop and fluid force acting on the each component of porous media are influenced by the aspect ratio of ellipsoid.