Author(s): Ali Shariq; Mohammad Saud Afzal
Linked Author(s): Mohammad Saud Afzal
Keywords: Porous weir Discharge Through flow Hydraulics
Abstract: Porous weirs are one of the simplest porous weir-type hydraulic structures composed of wire mesh cages filled with rocks, stones, or boulders, usually provided across a river. Their eco-friendly nature, complex hydraulics, economic advantages, and greater stability compared to impermeable structures have gained attention from both practitioners and researchers. It is intended to manage water flow, reduce erosion, and strengthen streambeds and riverbanks. Many investigators made many experimental and numerical study for the hydraulics and turbulence characteristics of solid weirs. According to the literature, a few investigators have conducted experimental and numerical studies on porous weirs for free-flow and submerged-flow conditions, while only two studies have examined flow through porous weirs under through-flow conditions. However, none of these studies developed simple equations for predicting discharge. The aim of this study was to develop the dimensionless discharge relationship to evaluate the flow through rectangular broad-crested porous weir under through flow conditions. Laboratory experiments were conducted for discharge passes through the porous body of porous weir under through flow conditions. The present study model was found to predict discharge through the porous weir within a maximum of ±10% error, which is considered satisfactorily.
Year: 2025