Nonlinear flow in karst formations

David A. Chin; René M. Price; Vincent J. Difrenna

doi:10.1111/j.1745-6584.2009.00574.x

Nonlinear flow in karst formations

David A. Chin, René M. Price, Vincent J. Difrenna

Civil, Architectural & Environmental Engineering

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

The variation of effective hydraulic conductivity as a function of specific discharge in several 0.2-m and 0.3-m cubes of Key Largo Limestone was investigated. The experimental results closely match the Forchheimer equation. Defining the pore-size length scale in terms of Forchheimer parameters, it is demonstrated that significant deviations from Darcian flow will occur when the Reynolds number exceeds 0.11. A particular threshold model previously proposed for use in karstic formations does not show strong agreement with the data near the onset of nonlinear flow.

Original language	English (US)
Pages (from-to)	669-674
Number of pages	6
Journal	Ground Water
Volume	47
Issue number	5
DOIs	https://doi.org/10.1111/j.1745-6584.2009.00574.x
State	Published - Sep 1 2009

ASJC Scopus subject areas

Water Science and Technology
Computers in Earth Sciences

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10.1111/j.1745-6584.2009.00574.x

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AB - The variation of effective hydraulic conductivity as a function of specific discharge in several 0.2-m and 0.3-m cubes of Key Largo Limestone was investigated. The experimental results closely match the Forchheimer equation. Defining the pore-size length scale in terms of Forchheimer parameters, it is demonstrated that significant deviations from Darcian flow will occur when the Reynolds number exceeds 0.11. A particular threshold model previously proposed for use in karstic formations does not show strong agreement with the data near the onset of nonlinear flow.

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Nonlinear flow in karst formations

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