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Groundwater Flow Modeling and Adopting a Different Approach in Dealing Pumping Wells | ||
| Water Harvesting Research | ||
| دوره 8، شماره 2، 2025، صفحه 284-298 اصل مقاله (1.48 M) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22077/jwhr.2025.10542.1195 | ||
| نویسندگان | ||
| Mohammad Javad Zeynali* 1؛ Mohammad Nazeri Tahroudi2؛ Omolbani Mohammadrezapour3 | ||
| 1Assistant Professor, Department of Economic Sciences and Water Engineering, University of Torbat Heydarieh, Torbat-e Heydarieh, Iran. | ||
| 2Asistant Professor, Department of Water Engineering, Lorestan University, Khorramabad, Iran. | ||
| 3Associate Professor, Department of Water Engineering, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran. | ||
| چکیده | ||
| In groundwater flow modeling, as in any modeling problem, a certain amount of error is inevitable. Recharge or discharge wells, acting as point sources or sinks, play a key role in modeling accuracy, and the way they are treated can either reduce or increase errors. In this study, two approaches were investigated: first, transferring the well to the nearest node in its neighborhood, and second, distributing the pumping rate of the well among the closest nodes. A hypothetical aquifer was examined under two conditions-unconfined and confined-and using both triangular and square meshes. The results indicated that simplifying the model by moving the pumping well to the nearest node is justified only for unconfined aquifers with triangular meshes. For other cases-including unconfined aquifers with square meshes and confined aquifers with either mesh-the second approach is recommended, as it significantly reduces errors in groundwater flow modeling. These findings can also be generalized to real aquifer studies. Quantitative results show that Approach 2 consistently reduces modeling errors: for unconfined aquifers, MAE values are below 0.03 for both mesh types, whereas confined aquifers exhibit larger reductions, particularly with triangular meshes, where MAE reaches 0.38 and maximum errors up to 1.17. These results highlight the robustness of Approach 2 across different mesh configurations and aquifer conditions, providing an effective and reliable numerical tool for groundwater modeling. | ||
| کلیدواژهها | ||
| Pumping Rate Separation؛ Pumping Well Location؛ Rectangular mesh؛ Transfer؛ Triangular mesh | ||
| مراجع | ||
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Zeynali, M. J. , Nazeri Tahroudi, M. and Mohammadrezapour, O. (2024). Investigating the Optimization-Simulation Problem of Groundwater Remediation Under Various Scenarios. Water Harvesting Research, 7(1), 125-139.
Zeynali, M. J. , Nazeri Tahroudi, M. and Mohammadrezapour, O. (2024). Optimizing Pump-and-Treat Method by Using Optimization-Simulation Models. Sustainable Earth Trends, 4(3), 19-30. doi: 10.48308/set.2024.236332.1060
Zeynali, M. J., Pourreza-Bilondi, M., Akbarpour, A., Yazdi, J., & Zekri, S. (2022). Optimizing pump-and-treat method by considering important remediation objectives. Applied Water Science, 12(12), 268.
Zeynali, M. J., Pourreza-Bilondi, M., Akbarpour, A., Yazdi, J., & Zekri, S. (2022). Development of a contaminant concentration transport model for sulfate-contaminated areas. Applied Water Science, 12(7), 169. | ||
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