An analytical approach to capture zone delineation for a well near a stream with a leaky layer |
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| Authors: | Mahdi Asadi-Aghbolaghi Mazda Kompani-Zare |
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| Institution: | 1. Faculty of Agriculture, Water Engineering Department, Shahrekord University, Shahrekord, Iran;2. Department of Desert Region Management, School of Agriculture, Shiraz University, Shiraz, Iran;3. Department of Geography and Environmental Management, University of Waterloo, Ontario, N2L 3G1, Canada |
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| Abstract: | AbstractAn analytical solution is developed to delineate the capture zone of a pumping well in an aquifer with a regional flow perpendicular to a stream, assuming a leaky layer between the stream and the aquifer. Three different scenarios are considered for different pumping rates. At low pumping rates, the capture zone boundary will be completely contained in the aquifer. At medium pumping rates, the tip of the capture zone boundary will intrude into the leaky layer. Under these two scenarios, all the pumped water is supplied from the regional groundwater flow in the aquifer. At high pumping rates, however, the capture zone boundary intersects the stream and pumped water is supplied from both the aquifer and the stream. The two critical pumping rates which separate these three scenarios, as well as the proportion of pumped water from the stream and the aquifer, are determined for different hydraulic settings.Editor D. Koutsoyiannis; Associate editor A. KoussisCitation Asadi-Aghbolaghi, M., Rakhshandehroo, G.R., and Kompani-Zare, M., 2013. An analytical approach to capture zone delineation for a well near a stream with a leaky layer. Hydrological Sciences Journal, 58 (8), 1813–1823. |
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| Keywords: | groundwater regional flow stream boundary capture zone delineation complex potential theory leaky layer |
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