摘要：The main scope of this article is to carry out a mathematical framework and its
corresponding finite element discretization for the solution of pollutant
transport in partially saturated soils. A multi- phase system with the
interstitial voids in the grain matrix filled with water (liquid phase), water
vapour and dry air (gas phase) and with pollutant substances, is assumed. The
ensuing mathematical model involves equations of momentum balance, energy
balance and mass balance of the whole multiphase system. Encouraging outcomes
were achieved in several different examples.
