Computer programs for the two regime flow towards wells.

Abstract

This report contains descriptions and listings of eight finite element computer programs which are written in FORTRAN IV language to simulate either Darcy or two-regime flow of groundwater towards a pumped well. Included are instructions for assembling the input data deck, sample input data for test problems and complete printouts of computed results.

A wide range of different aquifer conditions and well constructions has been considered (e.g. single-layer or multi-layer aquifers, confined or water table aquifers, fully or partially screened wells with or without gravel packs and with one or more screened intervals)

The flow can be either transient or steady state. Each program has been designed to handle specific flow cases encountered in practice with a minimum of input data and to operate with any consistent set of units.

The programs have practical application in both aquifer test evaluation and hydraulic design of pumped wells. Although written specifically to handle groundwater flow problems, these programs can readily be adapted to deal with flow of other types of incompressible fluid towards a pumped well.