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Modelling of a groundwater mound in two-dimensional heterogeneous unconfined aquifer in response to precipitation recharge
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Fluid and Experimental Mechanics.
Centre for Energy, Indian Institute of Technology Jodhpur, Ratanada.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Fluid and Experimental Mechanics.ORCID iD: 0000-0002-1033-0244
2015 (English)In: Journal of hydrologic engineering, ISSN 1084-0699, E-ISSN 1943-5584, Vol. 20, no 7, article id 4014081Article in journal (Refereed) Published
Abstract [en]

The paper deals with the transient semi-analytical solution of linearized Boussinesq equations characterizing the development of groundwater mound in an unconfined two-dimensional heterogeneous aquifer under vertical recharge conditions. The finite aquifer consists of two rectangular basins surrounded by open water bodies and shares a common impermeable or permeable boundary at the mid plane. The governing equations are solved by applying the Laplace transform and finite Fourier sine transform techniques. Accordingly, analytical expressions for water heads for two rectangular basins are obtained for various scenarios. The applicability of the solutions has been illustrated with the help of a case study and numerical examples, considering various cases. The region wise development of the groundwater mound indicates that the effect of heterogeneity becomes significant for small time duration whereas for long time it becomes insignificant. This result can have application in land reclamation problems in the presence of localized recharge where the reclamation displaces the ground water divide and changes the groundwater conditions in the entire region

Place, publisher, year, edition, pages
2015. Vol. 20, no 7, article id 4014081
National Category
Fluid Mechanics and Acoustics
Research subject
Fluid Mechanics
Identifiers
URN: urn:nbn:se:ltu:diva-6794DOI: 10.1061/(ASCE)HE.1943-5584.0001071Local ID: 5175ef23-05ba-4042-b0cc-7e2baf1d2966OAI: oai:DiVA.org:ltu-6794DiVA: diva2:979680
Note
Validerad; 2015; Nivå 2; 20140714 (stlu)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved

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