Analytical approach for the Lucas-Washburn equation.

摘要: Porous media can be characterized by studying the kinetics of liquid rise within pore spaces. Although porous generally have a complex structure, they modeled as single, vertical capillary or an assembly such capillaries. The main difficulties lie in separately estimating effective mean radius capillaries and contact angle between pore. In this paper we circumvent these obstacles exploring another approach suggest analytical classical Lucas-Washburn equation (LWE). Specifically, consider that meniscus inner surface becomes dynamic when front is movement. It has previously been demonstrated resulting time dependence due to frictional dissipation at moving wetting front.