Variable density coastal aquifer models with application to an aquifer on Thira Island

Kopsiaftis, G; Mantoglou, A; Giannoulopoulos, P

dc.contributor.author	Kopsiaftis, G	en
dc.contributor.author	Mantoglou, A	en
dc.contributor.author	Giannoulopoulos, P	en
dc.date.accessioned	2014-03-01T01:32:23Z
dc.date.available	2014-03-01T01:32:23Z
dc.date.issued	2009	en
dc.identifier.issn	0011-9164	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/20110
dc.subject	Coastal aquifers	en
dc.subject	Finite element method	en
dc.subject	Groundwater modelling	en
dc.subject	Seawater intrusion	en
dc.subject.classification	Engineering, Chemical	en
dc.subject.classification	Water Resources	en
dc.subject.other	Aquifers	en
dc.subject.other	Boundary conditions	en
dc.subject.other	Boundary value problems	en
dc.subject.other	Cements	en
dc.subject.other	Chlorine compounds	en
dc.subject.other	Groundwater	en
dc.subject.other	Groundwater geochemistry	en
dc.subject.other	Groundwater resources	en
dc.subject.other	Hydrogeology	en
dc.subject.other	Mathematical models	en
dc.subject.other	Seawater	en
dc.subject.other	Theorem proving	en
dc.subject.other	Three dimensional	en
dc.subject.other	Transport properties	en
dc.subject.other	Underground reservoirs	en
dc.subject.other	Artificial recharges	en
dc.subject.other	Chloride concentrations	en
dc.subject.other	Coastal aquifers	en
dc.subject.other	Constraint based	en
dc.subject.other	Fluid flows	en
dc.subject.other	Mass transports	en
dc.subject.other	Numerical models	en
dc.subject.other	Seawater intrusion	en
dc.subject.other	Transition zones	en
dc.subject.other	Transport models	en
dc.subject.other	Unconfined aquifers	en
dc.subject.other	Variable densities	en
dc.subject.other	Finite element method	en
dc.subject.other	boundary condition	en
dc.subject.other	coastal aquifer	en
dc.subject.other	density current	en
dc.subject.other	finite element method	en
dc.subject.other	fluid flow	en
dc.subject.other	groundwater	en
dc.subject.other	seawater	en
dc.subject.other	transport process	en
dc.subject.other	Cycladas	en
dc.subject.other	Eurasia	en
dc.subject.other	Europe	en
dc.subject.other	Greece	en
dc.subject.other	Santorin	en
dc.subject.other	Southern Aegean	en
dc.subject.other	Southern Europe	en
dc.title	Variable density coastal aquifer models with application to an aquifer on Thira Island	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.desal.2007.12.023	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.desal.2007.12.023	en
heal.language	English	en
heal.publicationDate	2009	en
heal.abstract	The advancement of seawater intrusion in coastal aquifers using three-dimensional variable density transport models is examined. The fluid flow and mass transport processes are considered and the resulting differential equations are solved numerically using finite element method. A constraint based boundary condition regarding chloride concentration is imposed on the seaside boundary. The numerical models are applied to an unconfined aquifer located in the central part of Thira Island (Santorini). Several scenarios are examined corresponding to steady-state and time-dependent conditions. Two potential cases of aquifer replenishment, with natural and artificial recharge are also simulated. The results demonstrate significant dependence of the advancement of seawater intrusion on the initial and boundary conditions prevailing on the seaside boundary of the aquifer. The transition zone predicted by variable density flow and transport models is of considerable width indicating the necessity for modelling using advanced three-dimensional variable density transport models. © 2008 Elsevier B.V. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Desalination	en
dc.identifier.doi	10.1016/j.desal.2007.12.023	en
dc.identifier.isi	ISI:000263444500006	en
dc.identifier.volume	237	en
dc.identifier.issue	1-3	en
dc.identifier.spage	65	en
dc.identifier.epage	80	en