ABSTRACT
ABSTRACT: The piano keys weir can operate in two different flow conditions, in free flow and submerged flow by its use. It can be used to protect the dam against the extreme floods, to measure or control the flow in channels and regulate the flow in a river. As the free flow condition has been studied extensively, it was essential to study the PK-Weir in submerged conditions, basing primarily on theoretical analysis supported by experimental analysis and taking as a reference the linear weir. The obtained results showed a concordance between the theoretical development and experimental results.
