A Galerkin-finite element technique for calculating the transient position of the saltwater front


  • Genevieve Segol,

  • George F. Pinder,

  • William G. Gray


The set of nonlinear partial differential equations that describe the movement of the saltwater front in a coastal aquifer is solved by the Galerkin-finite element method. Pressure and velocities are obtained simultaneously in order to guarantee continuity of velocities between elements. A layered aquifer is modeled either with a functional representation of permeability or by a constant value of permeability over each element.