Abstract
We developed a numerical model for Water-NAPL Tow Phase Flow in porous media in a previous paper, and the developed model was compare with a usual numerical model. As the result, it was found that the Modified Picard approximation which developed by Celia et al. for Air-Water Tow Phase Flow, compared accurate with the usual Fully Upwind Finite Difference Method. Therefore, as that continuation, equations of Air-Water-NAPL Three Phase Flow are approximate by Modified Picard approximation, using Finite Element Method in this paper. Furthermore, results of numerical analysis, using Modified Picard Finite Element Method, is compare with results of Fully Upwind difference method, and it is indicated that Modified Picard Finite Element Method give better accuracy than Fully Upwind difference method.
