Enhancing Discharge Capacity of Piano Key Weir by Varying Number of Cycles

Abstract

Innovative structures called piano key weirs are used in hydraulic engineering to regulate flow. This study intends to investigate the effects of changes in the geometry of the piano key weir, namely the number of cycles, on discharge performance. The study looked at how a piano key weir's discharge capacity would change as the number of cycles changed. In this work, a series of controlled laboratory tests were carried out in which several piano key weir models were examined at various heads in the range of 0.042m to 0.078m. The findings showed that some modifications to the geometric parameters can have a substantial effect on the piano key weir's discharge efficiency. The piano key weir's discharge rates increased as the number of cycles was reduced, showing that fewer cycles enable better flow control and water management capabilities. For such hydraulic systems to be designed and operated as efficiently as possible and to contribute to better water management and flood control methods, it is essential to understand these interactions. The research's conclusions offer useful information for engineers and professionals working on water resource projects, assisting them in making wise choices when putting piano key weirs to use in practical situations.