On the simulation of multicomponent gas flow in porous media Original Research Article

In this paper, we present some numerical techniques for the modeling of multicomponent gas flow in porous media. We feature the mixed finite element method over quadrilaterals as a solver to the non-Darcy flow equation, and a conservative Godunov-type scheme for the mass balance equations. The Godunov-type method is a higher-order scheme and requires a linear reconstruction of the solution profile using appropriately-chosen limiters for the slope. The mixed formulation for the flow system enables an efficient and natural treatment of various well-conditions.