Author(s)

Y. Fan, R. Kahawita & J.C. Tessier

Abstract

A numerical study of a negatively buoyant plume intruding into an unconfined aquifer has been undertaken using finite volume methods and modified characteristic methods. An attempt to reproduce the experimentally observed gravitational instabilities that form along the lower edge of the plume has been made. The model has been found to faithfully reproduce the ambient groundwater flow as well as the mean flow in the intruding plume. 1 Introduction Groundwater contamination by the movement of dense contaminants in the subsurface region is of prime importance since surface based pollutant sources release considerable amounts of heavy leachates into t

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