Abstract— A direct simulation investigations of contaminant transport has been conducted. The simulations are based on the unsteady longitudinal advection diffusion contaminant decay equation, which is discretized using finite element Galerkin’s method with backward difference time formulation with the application of COMSOL Multiphysics Software Package. It was observed that the simulation results, which are illustrated pictorially via line graphs and contours, consistently represented the analytical solutions of Mebine and George (2011), thereby demonstrating interesting features of the problem effected by the variety of contaminant decay time-dependent sources.
Keywords— Advection, COMSOL Multiphysics, Contaminant decay, Dispersion, Pollution, Time-dependent sources.
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