[518.1.1] Numerical solutions were calculated for the
coupled system (15) of nonlinear partial
differential equations obtained by macroscopic
constitutive modeling of two phase flow.
[518.1.2] The equations are based on the
concept of hydraulic percolation of fluid phases.
[518.1.3] The results illustrate the ability of the new theory to
describe drainage and imbibition occurring simultaneously
within the same sample, or sequentially at the same position
inside a porous medium.
[518.1.4] Stationary solutions are compared to predictions from the
traditional theory and significant differences are found.
[518.1.5] We emphasize that the numerical solutions are approximate.
[518.1.6] We encourage experimental groups to measure residual fluid
distributions during or after immiscible displacement.
[518.1.7] Such measurements would allow us to test our theoretical
predictions against experiment.
