NDLI: Simulation procedure of unconfined seepage with an inner seepage face in a heterogeneous field

Content Provider	Springer Nature Link
Author	Wu, MengXi Yang, LianZhi Yu, Ting
Copyright Year	2013
Abstract	An inner seepage face phenomenon is given and a numerical simulation procedure has been developed. It may appear at the interface of two materials when an unconfined seepage flows from a porous media to a coarser porous media with a higher permeability. Inaccuracy and divergent problems may arise both in a saturated-only and in a variably saturated analysis while an inner seepage face is not simulated with a special procedure. The position of the seepage face is determined during the nonlinear iteration process and the flux of the inner seepage face nodes is transferred to the downstream side nodes. Validity and efficiency of the procedure are illustrated by the simulation of two dimensional steady state seepage examples of heterogeneous zoned dams which is usually used to validate algorithms. An analysis of a three-dimensional earth core rockfill dam is also presented here. The procedure can also be applied to general transient seepage problems.
Starting Page	1139
Ending Page	1147
Page Count	9
File Format	PDF
ISSN	16747348
Journal	Science in China Series G
Volume Number	56
Issue Number	6
e-ISSN	18691927
Language	English
Publisher	SP Science China Press
Publisher Date	2013-05-07
Publisher Place	Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	unconfined seepage inner seepage face finite element method free surface Physics Classical Continuum Physics Astronomy, Observations and Techniques
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy

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