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Predicting Saturated Hydraulic Conductivity of Golf Course Sands from Particle‐Size Distribution
Author(s) -
Arya Lalit M.,
Heitman J.L.,
Thapa B.B.,
Bowman D.C.
Publication year - 2010
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj2009.0022
Subject(s) - hydraulic conductivity , hagen–poiseuille equation , flow (mathematics) , particle (ecology) , capillary action , particle size distribution , particle size , materials science , geotechnical engineering , mineralogy , geology , mechanics , soil science , soil water , physics , composite material , paleontology , oceanography
This research developed a model of saturated hydraulic conductivity for golf course and athletic field media. The model was developed from saturated flow data in packed sand cores, for which a pore‐size distribution was derived from particle‐size distribution, bulk density, and measured soil water characteristic data. The pores were first assumed to form an idealized structure, consisting of non‐tortuous capillary tubes of uniform shape and size, and the Hagen–Poiseuille flow equation was applied to compute idealized saturated flow. The idealized saturated flows were compared with saturated flows derived from the measured saturated hydraulic conductivity data. Subsequently, an empirical relationship was established between the two in the form: Q t(m) = c + dQ t(h–p) , where Q t(m) is the saturated flow through the natural‐structure sand cores and Q t(–p) is the saturated flow through the idealized pore structure for the same core. In our study, parameters c and d had values of −1.675 and 0.308, respectively, and the r 2 of the regression had a value of 0.871. The model was applied to 14 golf course sands and produced excellent results with minor anomalies.