Ground‐Water Model of Two‐Phase Immiscible Flow in Coarse Material

A numerical model was developed to simulate the behavior of two‐phase immiscible fluids in ground‐water systems for specific application to hydrocarbon spills and leaks. The model is a two‐dimensional areal flow model using the finite‐element method. A verification of the numerical model was performed using both an approximate analytical solution and a laboratory investigation. The verification results show that the numerical model adequately describes the behavior of immiscible two‐phase flow within a coarse porous material.