Unconfined Flow through Porous Media Using B-Spline Boundary Elements

Unconfined Flow through Porous Media Using B-Spline Boundary Elements

The boundary element method (BEM) is now established as a suitable and efficient technique for the analysis of ground-water flow problems. However, as in other discretization procedures, inaccuracies can be introduced as a result of the lack of derivative continuity between adjacent elements. Contin...

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Veröffentlicht in:Journal of hydraulic engineering (New York, N.Y.) N.Y.), 1991-11, Vol.117 (11), p.1479-1494
Hauptverfasser: Cabral, Jaime J. S. P, Wrobel, Luiz C
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Sprache:eng
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Boundaries
Boundary element method
Formulations
Iterative methods
TECHNICAL PAPERS
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container_end_page 1494
container_issue 11
container_start_page 1479
container_title Journal of hydraulic engineering (New York, N.Y.)
container_volume 117
creator Cabral, Jaime J. S. P
Wrobel, Luiz C
description The boundary element method (BEM) is now established as a suitable and efficient technique for the analysis of ground-water flow problems. However, as in other discretization procedures, inaccuracies can be introduced as a result of the lack of derivative continuity between adjacent elements. Continuity of the derivatives of the main variable is important to obtain a good representation of moving boundaries with iterative or time-marching schemes. A recently developed BEM formulation, using cubic B-splines, provides as much as C2 continuity between adjacent elements. This formulation is applied in herein to steady-state and transient unconfined flow in homogeneous and nonhomogeneous media.
doi_str_mv 10.1061/(ASCE)0733-9429(1991)117:11(1479)
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1943-7900
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source American Society of Civil Engineers:NESLI2:Journals:2014
subjects Boundaries
Boundary element method
Formulations
Iterative methods
TECHNICAL PAPERS
title Unconfined Flow through Porous Media Using B-Spline Boundary Elements
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