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Titolo:
Well bore boundary conditions for variably saturated flow modeling
Autore:
Therrien, R; Sudicky, EA;
Indirizzi:
Univ Laval, Dept Geol & Genie Geol, Quebec City, PQ G1K 7P4, Canada Univ Laval Quebec City PQ Canada G1K 7P4 Quebec City, PQ G1K 7P4, Canada Univ Waterloo, Dept Earth Sci, Waterloo, ON N2L 3G1, Canada Univ WaterlooWaterloo ON Canada N2L 3G1 ci, Waterloo, ON N2L 3G1, Canada
Titolo Testata:
ADVANCES IN WATER RESOURCES
fascicolo: 2, volume: 24, anno: 2000,
pagine: 195 - 201
SICI:
0309-1708(200011)24:2<195:WBBCFV>2.0.ZU;2-#
Fonte:
ISI
Lingua:
ENG
Soggetto:
SOLUTE TRANSPORT; AQUIFER;
Keywords:
groundwater flow; variably saturated; modeling; well; boundary conditions;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
19
Recensione:
Indirizzi per estratti:
Indirizzo: Therrien, R Univ Laval, Dept Geol & Genie Geol, Quebec City, PQ G1K 7P4, Canada Univ Laval Quebec City PQ Canada G1K 7P4 , PQ G1K 7P4, Canada
Citazione:
R. Therrien e E.A. Sudicky, "Well bore boundary conditions for variably saturated flow modeling", ADV WATER R, 24(2), 2000, pp. 195-201

Abstract

Well bore boundary conditions are incorporated in a three-dimensional finite element model that solves the variably saturated groundwater flow equation. One-dimensional line elements, which are used to discretize the flow equation along the well screen, are superimposed onto three-dimensional porous media elements. The use of line elements allows the inclusion of well bore storage effects, and also avoids the need of a second iteration step during the solution of the nonlinear flow equation to achieve the correct head and flux distribution along the well screen. Verification of the formulation is done by comparing results from the numerical model to an analytical solution for pumping in an unconfined aquifer. Simulation of convergent-divergent flow into a heterogeneous unconfined aquifer illustrates that the model accounts for the aquifer heterogeneity by producing a variable fluid fluxdistribution along the well screen. This result has implications for the correct modeling of contaminant transport to the well. (C) 2000 Elsevier Science Ltd. All rights reserved.

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Documento generato il 03/12/20 alle ore 05:14:04