Abstract

We examine the use of numeric flow solutions of the Navier-Stokes (N-S) equations toimprove flow modeling in fractured karst aquifers. The N-S equations were discretized withboth the meshed finite difference method (FDM) and the meshless smoothed particlehydrodynamics method. The results using the FDM model were successfully compared withthose taken from the literature. The N-S equations were solved numerically for twopractical problems in karst aquifers: (a) the horizontal displacement of the saltwater/freshwater sharp interface in fissures due to groundwater overexploitation and (b) thepressure and velocity profiles in fissures in the vicinity of an injection well. In the firstproblem, the numeric N-S solution suggests an exponential time advancement of thefreshwater/saltwater interface in fissures. In the second problem, the unsteady watervelocity and pressure profiles were determined in fissures having variable apertures in thevicinity of an injection well. The N-S simulation results agreed well with the data collectedduring the test, thereby removing any uncertainty in the estimation of the aquifertransmissivity.

Autore Pugliese

• Masciopinto Costantino

Tutti gli autori

• Masciopinto C.; Palmiotta D.

Titolo volume/Rivista

Water resources research

Anno di pubblicazione

2013

ISSN

0043-1397

ISBN

Non Disponibile

Numero di citazioni Wos

Nessuna citazione

Ultimo Aggiornamento Citazioni

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Numero di citazioni Scopus

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Ultimo Aggiornamento Citazioni

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Settori ERC

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Codici ASJC

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