Numerical Computation of Flow in Porous Media of Non-Newtonian Power Law Fluids

摘要

In this article, the volume average method of fluid flow in porous media is introduced and the unit volume resistance is analysed, then the Brinkman-Forchheimer extended Darcy model is obtained. Numerical results of fluid flow in porous media are solved, numerical results show that fluid flow in porous media within the tube has obvious structural flow characteristics. Boundary layer viscous effect is limited to the vicinity of the wall surface, the results reflect the comprehensive effect of Darcy resistance, Forchheimer inertial resistance and Brinkman added resistance. Blocking effect of porous media has the velocity distribution of the tube flattened, dilatant fluid is more sensitive effect to this.