Dupuit-forchheimer assumptions

From Glossary of Meteorology

Dupuit–Forchheimer assumptions

Simplifying approximation that water flow is horizontal and evenly distributed with depth below a water table.

The approximation is valid for mildly sloping water tables and for flow that is constrained to shallow depths.

Forchheimer, P. 1930. Hydraulik. 3d ed., Teubner, Leipzig, Berlin.