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Modelling of a coastal aquifer in Mexico: the simulation of the salt-water interface motion
Rivera, A.; Ledoux, E. (1989). Modelling of a coastal aquifer in Mexico: the simulation of the salt-water interface motion, in: De Breuck, W. et al. (Ed.) Proceedings of the 10th Salt-Water Intrusion Meeting Ghent (Belgium), 16-20 May 1988. Natuurwetenschappelijk Tijdschrift, 70(1-4): pp. 174-190
In: De Breuck, W.; Walschot, L. (Ed.) (1989). Proceedings of the 10th Salt-Water Intrusion Meeting Ghent (Belgium), 16-20 May 1988. Natuurwetenschappelijk Tijdschrift, 70(1-4). Natuurwetenschappelijk Tijdschrift: Gent, Belgium. 408 pp., more
In: Natuurwetenschappelijk Tijdschrift. L. Walschot/Natuur- en Geneeskundige Vennootschap: Gent. ISSN 0770-1748, more
Peer reviewed article  

Available in Authors 
Document type: Conference paper

Keywords
    Estuarine front; Ground water; Mathematical models; Simulation; ASW, Mexico, Veracruz [Marine Regions]

Authors  Top 
  • Rivera, A.
  • Ledoux, E.

Abstract
    The application of a numerical model to a coastal aquifer is here presented, including the simulation of single-phase and two-phase fluid flow. The single-phase part of the model solves the diffusivity equation and helps to identify certain parameters of the aquifer and to simulate the flow field (fresh water) under different conditions. The two-phase part of the model solves the partial differential equations describing the motion of salt water and fresh water separated by a sharp interface. The model was calibrated using the observed piezometry of the aquifer for the fresh-water flow field. Simulations were made both in steady and unsteady-state conditions, to establish the position and movement of the interface toe under different types of pumping. Results show that the model reproduces very accurately the flow field of fresh water. It identifies the potential salt-water intrusion (upconing) into some of the pumping wells, thus helping in the identification of optimal pumping schemes.

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