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Physical modeling of sand columns application in recharge reservoir to prevent seawater intrusion

Hamzah, Yusuf and Akhmad, Azis and Sugiarto, Badaruddin and Andi, Muhammad Subhan and Zulvyah, Faisal and Zubair, Saing (2022) Physical modeling of sand columns application in recharge reservoir to prevent seawater intrusion. Water Supply, 22 (2). pp. 1-9. ISSN 1607-0798

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This study aims to provide visual evidence by the physical simulation to demonstrate the sand column performance of a recharge reservoir to control seawater encroachment and confirm some previous studies. In this analysis, a two-dimensional sand tank illustrates the sand column’s
role in overcoming seawater intrusion. Besides using dyes, the sand tank is also fitted with sensors to observe the length of seawater penetration. Furthermore, the simulation using SEAWAT numerical modeling is used as a reference in this analysis. The criteria analyzed were the number of sand columns, the reservoir water level, and the isochlors concentration. The results revealed a reasonably close match between physical and computational modeling. It was also found that the more sand columns and the higher the reservoir water level, resulted in the decrease of seawater penetration length that occurred. Physical and computational modeling findings indicated that the optimal results are derived using three sand columns with an RMSE value of 0.76. The seawater infiltration length decreased to 84.72% relative to sand column-free conditions at a reservoir water level of 15.0 cm.

Item Type: Article
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Jurusan Teknik Sipil > D3 Teknik Konstruksi Gedung
Depositing User: Sugiarto Badaruddin
Date Deposited: 11 Mar 2023 03:11
Last Modified: 11 Mar 2023 03:11

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