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Adapting a finite-element package for simulation of groundwater flow with variable density
Zaadnoordijk, W.J. (1999). Adapting a finite-element package for simulation of groundwater flow with variable density, in: De Breuck, W. et al. (Ed.) Proceedings of the 15th Salt-Water Intrusion Meeting Ghent (Belgium), 25-29 May 1998. Natuurwetenschappelijk Tijdschrift, 79(1-4): pp. 114-122
In: De Breuck, W.; Walschot, L. (Ed.) (1999). Proceedings of the 15th Salt-Water Intrusion Meeting Ghent (Belgium), 25-29 May 1998. Natuurwetenschappelijk Tijdschrift, 79(1-4). Natuurwetenschappelijk Tijdschrift: Gent, Belgium. 307 pp., more
In: Natuurwetenschappelijk Tijdschrift. L. Walschot/Natuur- en Geneeskundige Vennootschap: Gand. ISSN 0770-1748, more
Peer reviewed article  

Available in Author 
    VLIZ: Proceedings D [27371]
Document type: Conference paper

Keywords
    Density gradients; Ground water; Simulation

Author  Top 
  • Zaadnoordijk, W.J.

Abstract
    Density differences often have a significant influence on the groundwater flow in coastal regions. A sharp interface between fresh and salt water used to be the standard way of accounting for this influence in regional groundwater-flow models. At the SWIM 10 years ago, MAAS & EMKE (1988) presented an approach in which the same groundwater-flow model can account for an arbitrary density distribution. The approach, which had not yet been used in a finite-element model, is implemented in TRIWACO. The groundwater-flow simulation package TRIWACO uses triangular finite elements that offer flexibility in the model geometry and permeability tensor. Moreover with the transition to Windows 95 TRIWACO has become very user-friendly and efficient in model set-up.

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