Title: Numerical modelling of groundwater flow in Nambiyar River Basin

Authors: S.P. Rajaveni; R.V. Archana; B. Saranya; P. Shakthi Priyadharshini

Addresses: Department of Civil Engineering, Mepco Schlenk Engineering College, Sivakasi, Tamil Nadu, India ' Department of Civil Engineering, Mepco Schlenk Engineering College, Sivakasi, Tamil Nadu, India ' Department of Civil Engineering, Mepco Schlenk Engineering College, Sivakasi, Tamil Nadu, India ' Department of Civil Engineering, Mepco Schlenk Engineering College, Sivakasi, Tamil Nadu, India

Abstract: Coastal aquifers are groundwater resources that connect land and sea. Coastal aquifers supply freshwater to almost one billion people who live near the coast and interact with coastal risks as well as coastal ecosystems. On a regional and global scale, coastal groundwater runoffs should pay more attention to the balance between water and solutes. The objective of this paper is to simulate the dynamics of groundwater discharge along the Nambiyar River Basin coastal shoreline. A three-dimensional groundwater flow equation was used to estimate the groundwater discharge along the shoreline from December 2010 to December 2018. By adjusting aquifer parameters within the permitted range, steady state calibration was performed to match the observed and simulated groundwater heads. The study results show that the quantity of groundwater discharge is high during the month of August compared to the month of April.

Keywords: groundwater discharge; groundwater model; Nambiyar River Basin; finite element model.

DOI: 10.1504/IJHST.2024.136462

International Journal of Hydrology Science and Technology, 2024 Vol.17 No.2, pp.183 - 197

Received: 30 Jun 2022
Accepted: 29 Sep 2022
Published online: 02 Feb 2024 *

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