Piano key weirs (PKWs) are an increasingly popular hydraulic structure due to their higher
discharge capacity than linear weirs. Accurately predicting the discharge of PKWs is …

In this work experimental and numerical investigations were carried out to study the
influence of the geometric parameters of trapezoidal–triangular labyrinth weirs (TTLW) on …

Currently, many existing spillways located throughout the globe require rehabilitation due to
dam safety issues. Consequently, there is an increasing need for design tools that facilitate …

Labyrinth weirs present an effective solution for high discharge efficiency in space-restrictive
situations. However, these weirs exhibit negative effects (vibrations, noise, and instability) …

ABSTRACT Piano Key Weir (PKW) is a non-linear weir with a small foundation footprint that
allows large discharges through a narrow channel. The presence of overhangs classifies it …

Piano Key (PK) and trapezoidal labyrinth (TL) weirs are nonlinear control structures suitable
for narrow channels with high discharge by expanding the crest length of the overflow. In …

Forum papers are thought-provoking opinion pieces or essays founded in fact, sometimes
containing speculation, on a civil engineering topic of general interest and relevance to the …

Labyrinth weirs increase the discharge rate by increasing the effective length of the weir
within a confined width. In this paper, an attempt was made to improve the hydraulic …

This chapter investigates the flow dynamics and energy dissipation of Piano Key Weirs
(PKWs) and Labyrinth Weirs (LWs) using Computational Fluid Dynamics (CFD) models …

Labyrinth weirs are mainly used to increase the discharge capacity. The current study adds
a new performance to labyrinth weirs as an energy dissipator. The labyrinth weirs' zigzag …