Piano key (PK) weirs are used in a variety of flow control structure applications, including spillway crests and open channel diversion structures. However, to the best authors’ knowledge, structure-specific design guidance for scour mitigation is still needed. To fill this gap systematic experimental campaign was conducted by testing different configurations horizontal aprons with cutoff wall....

Abstract The compound labyrinth weir is a new type of that considered good applicable choice for increasing the capacity discharge. flow over complex problem because behavior three-dimensional. present study aims to simulate into critical regions cannot be observed when using an experimental test. computational fluid dynamics (CFD) programme was utilised implement sensitive analysis this purpos...

This study investigates the impact of cross structures on flood occurrences in mountainous rivers. The governing equations open channel flow were formulated based Saint-Venant equations. was segmented, and a node equation established at each section’s connection point. An overflow model bridges weir dams also developed. physical simplified modeled using actual building data calculation requirem...