Density dependent groundwater flow with mass transport in saturated-unsaturated porous media

摘要

In this study, we extended a Eulerian-Lagrangian numerical method to three-dimensional advection-dispersion problems in saturated and unsaturated regions, with consideration of density-dependent characteristics. This approach was verified and validated by comparing the resulting theoretical solution with experimental results and with theoretical solutions of conventional methods. Also, a block search technique was proposed instead of a conventional computation method for the advection term, which significantly reduced the required computation time.