Author(s): Mohammad Saud Afzal; Ali Shariq
Linked Author(s): Mohammad Saud Afzal
Keywords: Porous weir Porosity Boulder Size Discharge Turbulent Characteristics
Abstract: Weirs are commonly used structures to control and measure water flow in open channels, and they are typically constructed from materials like concrete or metal, depending on the size and shape of the river or channel. Porous weirs, renowned for their porous, eco-friendly design, are gaining widespread acceptance in hydraulic engineering due to their multifaceted benefits in flood management, river training, and sustainable water resource systems. Laboratory experiments were conducted on porous weirs having various porosities, and boulders sizes, for discharges ranging from 0.004 to 0.025 m3/s. The setup consists of a channel measuring 9.87 m in length, 0.60 m in width, and 0.60 m in depth. This study aims to investigate turbulence characteristics, such as velocity distribution, turbulent intensity, Reynolds shear stress, and turbulent kinetic energy. These findings highlight the critical interplay between boulder properties and hydraulic performance, ensuring efficient water management while preserving flow stability.
Year: 2025