E3S Web Conf.
Volume 54, 201825th Salt Water Intrusion Meeting (SWIM 2018)
|Number of page(s)||6|
|Published online||17 September 2018|
On the use of COMSOL Multiphysics for seawater intrusion in fractured coastal aquifers
Department of Civil Engineering, Sharif University of Technology, Tehran, Iran
2 Laboratoire d’Hydrologie et Geochemie de Strasbourg, University of Strasbourg/ EOST/ENGEES, CNRS, Strasbourg, France
3 National Centre for Groundwater Research & Training and College of Science & Engineering, Flinders University, Adelaide, Australia
4 Faculty of Engineering, Lebanese University, Rafic Harriri Campus, Hadath, Beirut, Lebanon
Contact Information: M. Fahs, Laboratoire d’hydrologie et de Géochimie de Strasbourg, 1 Rue Blessig, 67084, Strasbourg. Phone : 00 33 3 68 85 04 48. Email : firstname.lastname@example.org
COMSOL Multiphysics is a comprehensive simulation software environment for a wide range of applications. COMSOL has an interactive interface that facilitates the modeling procedure and allows an easy coupling of different physical processes. The Subsurface Flow module extends the COMSOL modeling environment to applications related to fluid flow in saturated and variably saturated porous media. COMSOL is increasingly used in the investigation of geophysical, hydrogeological and environmental phenomena. The main goal of this work is to explore the ability of COMSOL for simulating seawater intrusion (SWI) in fractured coastal aquifers. Numerical modeling of such a problem is of high interest as fractured/karstic coastal aquifers are widespread and processes of SWI in the presence of fractures remains poorly understood. We set up a COSMOL model for the popular Henry problem. The accuracy of COMSOL is highlighted by comparison against the semianalytical solutions for simple homogeneous aquifers. For fractured aquifers, the performance of COSMOL is evaluated by comparison against an in-house finite element model based on the discrete fracture model and against the results of existing works. Given its versatility and flexibility, COMSOL shows promise as a tool for SWI in coastal aquifers.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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