Effects of capillarity on microscopic flow in porous media. Progress report, June 1, 1993--May 31, 1994

摘要

The central theme of this proposal is to study the effects of capillarity on the motion of a fluid interface and to apply these results to flow in porous media. Here we report on several problems considered this year, the third year of the grant, and during the other years of the grant. In particular we have developed a numerical code to study the dynamics of a gas bubble in a pore in order to examine the fundamental mechanism for the generation of a foam in a porous material, we have investigated the stability of a foam lamella in order to understand the stability of foam flow in a porous material and we have derived systematically a slip coefficient for flow over a rough and coated surface, e.g., as in a pore. In addition we report on work on several other problems.