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A grid generating algorithm for simulating a fluctuating water table boundary in heterogeneous unconfined aquifers / by A.S. Crowe, S.G. Shikaze and F.W. Schwartz.: En13-5/97-142E-PDF

"A method for generating finite element grids that calculates the position of a fluctuating water table and the formation of seepage faces within a heterogeneous unconfined aquifer is described. Our approach overcomes limitations with existing techniques, with respect to numerical accuracy and heterogeneities, by allowing the water table to rise or decline through hydrostratigraphic boundaries, yet maintain numerical and conceptual accuracy with respect to hydrostratigraphic geometry. The algorithm involves (1) a limited stretching of elements along the water table if the change in the position of the water table is small with respect to the vertical grid spacing, and (2) the addition or removal .of nodes and elements to the finite element mesh along the water table as the change becomes large with respect to the vertical grid spacing. This technique is applicable to any 2-D or 3-D finite element code that contains an automatic finite-element grid generator"--Abstract, page 2.

Permanent link to this Catalogue record:
publications.gc.ca/pub?id=9.873475&sl=0

Publication information
Department/Agency
  • Canada. Environment Canada.
  • Canada. Water Science and Technology Directorate.
  • Ohio State University. Department of Geological Sciences‏.
  • National Water Research Institute (Canada)
TitleA grid generating algorithm for simulating a fluctuating water table boundary in heterogeneous unconfined aquifers / by A.S. Crowe, S.G. Shikaze and F.W. Schwartz.
Series title
  • NWRI contribution ; no. 97-142
Publication typeMonograph - View Master Record
Language[English]
FormatDigital text
Electronic document
Note(s)
  • "For submission to: Advances in Water Resources."
  • "December 1997."
  • Digitized edition from print [produced by Environment and Climate Change Canada].
  • Includes bibliographical references.
Publishing information
  • [Ottawa] : Environment Canada, Water Science and Technology Directorate = Environnement Canada, Direction générale des sciences et de la technologie, eau, 1997.
Author / Contributor
  • Crowe, Allan, 1952- author.
  • Shikaze, Steven G. (Steven Grant), 1966- author.
  • Schwartz, F. W. (Franklin Walter)author.
Description1 online resource (15 pages, 6 unnumbered pages) : illustrations.
Catalogue number
  • En13-5/97-142E-PDF
Subject terms
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