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http://dx.doi.org/10.3741/JKWRA.2020.53.10.861

Experimental study on non-linear throughflow characteristics of rockfill gabion weir  

Han, Ilyeong (Technical Research Center, Biryong Corporation)
Lee, Jaejoung (Technical Research Center, Biryong Corporation)
Kim, Gyoo bum (Department of Construction Safety and Disaster Prevention, Daejeon University)
Publication Information
Journal of Korea Water Resources Association / v.53, no.10, 2020 , pp. 861-870 More about this Journal
Abstract
As the flow velocity and Reynolds number increase in rockfill porous media, the flow deviates from Darcy conditions. In this study, the permeability tests of rock column specimen and laboratory gabion weir model were carried out to investigate a head loss behaviour of flow through rockfill deposition in small river artificial recharge. Through column test, the nonlinear relationships between flow velocity and hydraulic gradient and coefficients were determined and the correlation formula of hydraulic mean radius and coefficients was proposed. The flow velocities and discharges in voids estimated by proposed equations were well matched with the measured values of laboratory gabion weir model.
Keywords
Porous media; Permeability test; Rock column specimen; Laboratory gabion weir model; Hydraulic mean radius;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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