A validation of a Dupuit‐Forchheimer Formulation for flow with variable density

Comparisons are made between Dupuit-Forchheimer solutions and solutions to the differential equation governing flow with variable density. The solutions apply to flow in the vertical plane in aquifers confined by two horizontal impervious boundaries. The comparisons serve as a validation of the Dupuit-Forchheimer formulation presented by Strack [this issue].