A modified boundary integral solution of recharging and dewatering of an unconfined homogeneous aquifer

Abstract

A numerical procedure is presented to deal with recharging and dewatering of unconfined homogeneous aquifer. The new procedure, referred to as the Green element method (GEM), relies on the singular integral theory of the boundary element method (BEM) and permits the solution integral replication of the governing non-linear partial differential equation by domain discretisation. Hence, the advantages of both BEM and the finite element method (FEM) are utilised. * To whom all correspondence should be addressed. za Received 23 October 1998; accepted in revised form 31 July 1998. 25 No.

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