Crest length is an important parameter in influencing the discharge handling capacity of a
weir. Nonlinear weirs with longer crests are cost effective alternatives for those existing dam …

As a remarkable parameter, the discharge coefficient (Cd) plays an important role in
determining weirs' passing capacity. In this research work, the support vector machine …

Abstract Piano Key Weirs (PKWs) are often preferred over other spillways for the dam
rehabilitation due to high discharging capacity. The present study investigates scour …

Weirs serve the dual purpose of flow measurement and flow regulation in open channels. In
the past, weirs of improved plan form have been used to increase the discharge through the …

Piano Key Weirs (PKWs) have recently been used as new or rehabilitation options in the
world because of their advantages in hydraulic performance and construction costs …

Piano key weirs (PKWs) are designed to efficiently regulate the discharge of water,
particularly during high-flow events such as, floods. They are especially useful in managing …

ABSTRACT A significant number of dams worldwide are very old and thus require a
reassessment of maximum flood discharges due to siltation and climate change effects. The …

The existing equations for the discharge coefficient of Piano key weirs (PKWs) use a limited
range of experimental data, which means that they are inappropriate for wide parametric …

Excessive mining of gravel and sand from river bed leads to degradation, lowering of the
groundwater table, environmental loss, damage to hydraulic structures, etc. The …

One of the major problems of weirs located on an erodible bed is downstream scouring,
which can endanger their stabilities. In this study, downstream scouring of a type-A …