Development and verification of a 3-D integrated surface water-groundwater model

Spanoudaki, K; Stamou, AI; Nanou-Giannarou, A

dc.contributor.author	Spanoudaki, K	en
dc.contributor.author	Stamou, AI	en
dc.contributor.author	Nanou-Giannarou, A	en
dc.date.accessioned	2014-03-01T01:30:10Z
dc.date.available	2014-03-01T01:30:10Z
dc.date.issued	2009	en
dc.identifier.issn	0022-1694	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/19488
dc.subject	Groundwater modelling	en
dc.subject	Integrated modelling	en
dc.subject	Stream-aquifer interaction	en
dc.subject	Surface water modelling	en
dc.subject.classification	Engineering, Civil	en
dc.subject.classification	Geosciences, Multidisciplinary	en
dc.subject.classification	Water Resources	en
dc.subject.other	Analytical solutions	en
dc.subject.other	Computational costs	en
dc.subject.other	Darcy's law	en
dc.subject.other	Discretisation	en
dc.subject.other	Finite-difference methods	en
dc.subject.other	Fully implicit scheme	en
dc.subject.other	Governing equations	en
dc.subject.other	Groundwater equations	en
dc.subject.other	Groundwater flow equation	en
dc.subject.other	Groundwater modelling	en
dc.subject.other	Groundwater models	en
dc.subject.other	Integrated modelling	en
dc.subject.other	New approaches	en
dc.subject.other	Real-world	en
dc.subject.other	Reynold save raging	en
dc.subject.other	Semi-implicit scheme	en
dc.subject.other	Steady state Navier-Stokes equations	en
dc.subject.other	Stream-aquifer interaction	en
dc.subject.other	Surface water flows	en
dc.subject.other	Surface water-groundwater interaction	en
dc.subject.other	Water exchange	en
dc.subject.other	Aquifers	en
dc.subject.other	Computational efficiency	en
dc.subject.other	Difference equations	en
dc.subject.other	Fluid dynamics	en
dc.subject.other	Groundwater flow	en
dc.subject.other	Groundwater resources	en
dc.subject.other	Hydraulics	en
dc.subject.other	Hydrogeology	en
dc.subject.other	Hydrostatic pressure	en
dc.subject.other	Navier Stokes equations	en
dc.subject.other	Surface waters	en
dc.subject.other	Three dimensional	en
dc.subject.other	Surface analysis	en
dc.subject.other	computational fluid dynamics	en
dc.subject.other	finite difference method	en
dc.subject.other	flow modeling	en
dc.subject.other	groundwater flow	en
dc.subject.other	groundwater-surface water interaction	en
dc.subject.other	hydrostatic pressure	en
dc.subject.other	Navier-Stokes equations	en
dc.subject.other	Reynolds number	en
dc.subject.other	surface water	en
dc.subject.other	three-dimensional modeling	en
dc.title	Development and verification of a 3-D integrated surface water-groundwater model	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.jhydrol.2009.06.041	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.jhydrol.2009.06.041	en
heal.language	English	en
heal.publicationDate	2009	en
heal.abstract	Coupled modelling of surface and subsurface systems is a valuable tool for quantifying surface water-groundwater interactions. In the present paper, the 3-D non-steady state Navier-Stokes equations, after Reynolds averaging and with the assumption of a hydrostatic pressure distribution, are for the first time coupled to the 3-D saturated groundwater flow equations in an Integrated suRface watEr-groundwater modEl (IRENE). A finite-difference method is used for the solution of the governing equations of IRENE. A semi-implicit scheme is used for the discretisation of the surface water flow equations and a fully implicit scheme for the discretisation of the groundwater flow equations. The two sets of equations are coupled at the common interface of the surface water and groundwater bodies, where water exchange takes place, using Darcy's law. A new approach is proposed for the solution of the coupled surface water and groundwater equations in a simultaneous manner, in such a fashion that gives computational efficiency at low computational cost. IRENE is verified against three analytical solutions of surface water-groundwater interaction, which are chosen so that different components of the model can be tested. The model closely reproduces the results of the analytical solutions and can therefore be used for analysing and predicting surface water-groundwater interactions in real-world cases. (C) 2009 Elsevier B.V. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Journal of Hydrology	en
dc.identifier.doi	10.1016/j.jhydrol.2009.06.041	en
dc.identifier.isi	ISI:000270472100011	en
dc.identifier.volume	375	en
dc.identifier.issue	3-4	en
dc.identifier.spage	410	en
dc.identifier.epage	427	en