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Incorporating 3-D Effects into a 2-D Model

by David A. Hamilton, Michigan Dep of Natural Resources, Engineering-Water Management Div, Lansing, MI, USA,
Steve A. Miller, Michigan Dep of Natural Resources, Engineering-Water Management Div, Lansing, MI, USA,



Document Type: Proceeding Paper

Part of: Hydraulics and Hydrology in the Small Computer Age

Abstract:

Some three-dimensional (3-D) effects may be incorporated into vertically averaged two-dimensional models. This is demonstrated with a case study where the effects of a complex system of silt and clay lenses are incorporated into a two-dimensional (2-D) model. Lenses were identified areally and with depth using electrical resistivity techniques. A 2-D model was developed where lens elevations and lateral extent were incorporated and effectively adjusted the local transmissivities. The calibrated model was then able to help design an efficient purge well system to remove the contaminant plume.

Subject Headings: Two-dimensional models | Three-dimensional models | Mathematical models | Clays | Case studies | Soil water | Soil pollution

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