Investigating Effect of Pumping Ratio on Effectiveness of Barrier Wells for Saltwater Intrusion: Lab-Scale Experiments and Numerical Modeling
| Autor: | Yoshinari Hiroshiro, Shinichi Ozaki, Tatsuya Nagino, Christel Abi Akl |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
010504 meteorology & atmospheric sciences
Geography Planning and Development Lab scale 0207 environmental engineering Numerical modeling 02 engineering and technology Aquatic Science global warming 01 natural sciences Biochemistry critical roundwater pumping ratio saltwater intrusion production well critical groundwater pumping ratio Saltwater intrusion 020701 environmental engineering TD201-500 0105 earth and related environmental sciences Water Science and Technology Petroleum engineering Computer simulation Water supply for domestic and industrial purposes Hydraulic engineering Critical ratio laboratory experiment salinity-affected coastal aquifer Volumetric flow rate sandy aquifer Environmental science Laboratory experiment TC1-978 barrier well Groundwater |
| Zdroj: | Water, Vol 13, Iss 2100, p 2100 (2021) Water Volume 13 Issue 15 |
| ISSN: | 2073-4441 |
| Popis: | Saltwater intrusion, leading to the salinization of fresh groundwater, is the most challenging problem in coastal regions. Saltwater pumping from a barrier well is widely applied to prevent saltwater intrusion. Owing to its easy installation, many studies have investigated saltwater pumping. However, quantitative relationships between the barrier and inland production wells have not been revealed. In this study, lab-scale experiments were conducted to examine the effectiveness of a barrier well on the possible flow rate of freshwater from a production well. Moreover, a two-dimensional numerical model was created and simulated under the same conditions as those used in the experiments to analyze the experimental results. Consequently, a critical pumping ratio of 1.9 was obtained. In the numerical simulation, it was confirmed that an upconing of highly concentrated saltwater toward the barrier well was observed when the pumping ratio was less than the critical ratio. In conclusion, there is a critical pumping ratio between the barrier and the production well, and saltwater intrusion can be controlled by keeping the pumping rates under the critical ratio. Although further studies have yet to be conducted on a practical scale, this study showed the potential of the pumping ratio control to manage saltwater intrusion. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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