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Zeynali, Mohammad Javad, Nazeri-Tahroudi, Mohammad, Mohammadrezapour, Omolbani. (1404). Groundwater Flow Modeling and Adopting a Different Approach in Dealing Pumping Wells. , (), -. doi: 10.22077/jwhr.2025.10542.1195
Mohammad Javad Zeynali; Mohammad Nazeri-Tahroudi; Omolbani Mohammadrezapour. "Groundwater Flow Modeling and Adopting a Different Approach in Dealing Pumping Wells". , , , 1404, -. doi: 10.22077/jwhr.2025.10542.1195
Zeynali, Mohammad Javad, Nazeri-Tahroudi, Mohammad, Mohammadrezapour, Omolbani. (1404). 'Groundwater Flow Modeling and Adopting a Different Approach in Dealing Pumping Wells', , (), pp. -. doi: 10.22077/jwhr.2025.10542.1195
Zeynali, Mohammad Javad, Nazeri-Tahroudi, Mohammad, Mohammadrezapour, Omolbani. Groundwater Flow Modeling and Adopting a Different Approach in Dealing Pumping Wells. , 1404; (): -. doi: 10.22077/jwhr.2025.10542.1195

Groundwater Flow Modeling and Adopting a Different Approach in Dealing Pumping Wells

Water Harvesting Research
مقالات آماده انتشار، پذیرفته شده، انتشار آنلاین از تاریخ 06 دی 1404
نوع مقاله: Research Paper
شناسه دیجیتال (DOI): 10.22077/jwhr.2025.10542.1195
نویسندگان
Mohammad Javad Zeynali* 1؛ Mohammad Nazeri-Tahroudi2؛ Omolbani Mohammadrezapour3
1Department of Economic Sciences and Water Engineering, Agriculture Faculty, 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
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
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