A MODEL FOR GROUNDWATER MOTION IN 3D RANDOM HYDROGEOLOGIC HETEROGENEOUS MEDIA

Abstract

A mathematical model for groundwater motion in three dimension hydrogeologic heterogeneous media at Al Hawija Area (4222km2in extent) is developed. The theory of superposition is applied at the media and the results are verified using a theoretical background of Darcey’s Law and Theis Equation for the confined and unconfined aquifers at the area. Under the highlight of the current conceptualization study, the resulted superimposed drawdown variation of theoretical and numerical solutions shows a good identity at the beginning of pumping up to 2500 days and acceptable identity in variation beyond these periods for the unconfined aquifer. Whereas the variation of drawdown with time for both theoretical and numerical solution shows an acceptable coincidence before one year and the two solutions begin to deviate with time beyond that under the effect the existing hydraulic boundaries for the confined aquifer.