Document Type : Original Article
Authors
1 MSc Student in Civil Engineering, Water Resources Management, University of Birjand, Birjand, Iran.
2 Professor, Department of Civil Engineering, Faculty of Engineering, University of Birjand, Birjand, Iran.
3 Assistant Professor of UNESCO Chair on Aflaj Studies (Archaeohydrology), University of Nizwa, Nizwa, Oman
Abstract
Coastal aquifers are groundwater aquifers located by the sea. The water quality of these aquifers has always been considered and one of the main concerns, in this case, is the infiltration of salt water into the aquifer. The effectiveness of aquifer water depends on the flow of groundwater as well as the concentration of salt contaminants. On the other hand, the amount of salinity is dependent on factors such as agricultural and human activities, climate change and so on. Today, due to the scarcity of water resources, the use of groundwater resources has increased, so the study of saline water intrusion is considered necessary, which is studied in this study. In this research, diffusion equations including flow and transport equations have been used. To solve the above equations, the meshless local Petrov-Galerkin method has been used. The Henry standard problem was solved to validate the results of the equations. To evaluate the results, the Henry problem was solved with FEFLOW software and compared with the proposed model and it was observed that the results of the meshless local Petrov-Galerkin method are close to the results of the FEFLOW finite element model, which indicates the acceptable accuracy of this model.
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