Coupled and partially coupled Eulerian-Lagrangian model of freshwater-seawater mixing

G. Galeati, G. Gambolati, Shlomo P Neuman

Research output: Contribution to journalArticle

90 Citations (Scopus)

Abstract

The problem of density-dependent transport of salt in unconfined coastal aquifers is solved numerically by means of an implicit Eulerian-Lagrangian finite element formulation. The method has been used to study the effect of dewatering on seawater intrusion within a vertical cross section through an aquifer in southern Italy, related to the construction of a thermoelectric power plant. To investigate the extent to which the dependence of fluid density on salt concentration affects the numerical solution, the flow and advection-dispersion equations were solved in coupled (iterative), partially coupled (noniterative) and completely decoupled modes. Partial coupling was found to yield results very close to those obtained by full coupling but at great savings in computer time; the less rigorous decoupled approach led to results substantially different from those obtained through coupling and partial coupling. Effects of aquifer heterogeneity and the construction of a cutoff wall on seawater intrusion are discussed. -from Authors

Original languageEnglish (US)
Pages (from-to)149-165
Number of pages17
JournalWater Resources Research
Volume28
Issue number1
DOIs
StatePublished - 1992
Externally publishedYes

Fingerprint

Aquifers
Seawater
Salt water intrusion
aquifers
saltwater intrusion
seawater
aquifer
salt
cutoff wall
coastal aquifer
unconfined aquifer
Thermoelectric power plants
Salts
dewatering
savings
power plant
advection
cross section
Dewatering
power plants

ASJC Scopus subject areas

  • Environmental Science(all)
  • Environmental Chemistry
  • Aquatic Science
  • Water Science and Technology

Cite this

Coupled and partially coupled Eulerian-Lagrangian model of freshwater-seawater mixing. / Galeati, G.; Gambolati, G.; Neuman, Shlomo P.

In: Water Resources Research, Vol. 28, No. 1, 1992, p. 149-165.

Research output: Contribution to journalArticle

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