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dc.contributor.authorHuang, Ching-Shengen_US
dc.contributor.authorYeh, Hund-Deren_US
dc.date.accessioned2017-04-21T06:55:34Z-
dc.date.available2017-04-21T06:55:34Z-
dc.date.issued2016-11en_US
dc.identifier.issn0043-1397en_US
dc.identifier.urihttp://dx.doi.org/10.1002/2016WR019443en_US
dc.identifier.urihttp://hdl.handle.net/11536/133351-
dc.description.abstractThis study introduces an analytical approach to estimate drawdown induced by well extraction in a heterogeneous confined aquifer with an irregular outer boundary. The aquifer domain is divided into a number of zones according to the zonation method for representing the spatial distribution of a hydraulic parameter field. The lateral boundary of the aquifer can be considered under the Dirichlet, Neumann or Robin condition at different parts of the boundary. Flow across the interface between two zones satisfies the continuities of drawdown and flux. Source points, each of which has an unknown volumetric rate representing the boundary effect on the drawdown, are allocated around the boundary of each zone. The solution of drawdown in each zone is expressed as a series in terms of the Theis equation with unknown volumetric rates from the source points. The rates are then determined based on the aquifer boundary conditions and the continuity requirements. The estimated aquifer drawdown by the present approach agrees well with a finite element solution developed based on the Mathematica function NDSolve. As compared with the existing numerical approaches, the present approach has a merit of directly computing the drawdown at any given location and time and therefore takes much less computing time to obtain the required results in engineering applications.en_US
dc.language.isoen_USen_US
dc.titleAn analytical approach for the simulation of flow in a heterogeneous confined aquifer with a parameter zonation structureen_US
dc.identifier.doi10.1002/2016WR019443en_US
dc.identifier.journalWATER RESOURCES RESEARCHen_US
dc.citation.volume52en_US
dc.citation.issue11en_US
dc.citation.spage9201en_US
dc.citation.epage9212en_US
dc.contributor.department環境工程研究所zh_TW
dc.contributor.departmentInstitute of Environmental Engineeringen_US
dc.identifier.wosnumberWOS:000393318600047en_US
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