Location
Atlanta, GA
Presentation Type
Presentation
Start Date
10-8-2025 11:10 AM
Description
Arced labyrinth weirs, characterized by a curved cycle orientation, can enhance discharge efficiency compared to linear labyrinth weirs by taking advantage of the approaching flow field in reservoirs. This paper summarizes some of the Utah State University arced labyrinth weir hydraulic efficiency research findings, including sidewall and cycle arc angle influences, nappe aeration, and local submergence. Recent CFD modeling that replicates some of the experimental findings is also highlighted, demonstrating CFD utility for design. The Springton Spillway project, owned by Aqua Pennsylvania, leveraged this research when designing a two-stage, eight-cycle arced labyrinth weir to replace an aging ogee crest spillway in order to meet current flood safety standards. Drawing parallels to the Lake Isabella project, which integrated empirical data and physical modeling, the Springton spillway project exemplifies the application of research-based innovations in finding solutions to complex hydraulic challenges.
Included in
Advances in Arced Labyrinth Weir Research and Application at the Springton Spillway Project
Atlanta, GA
Arced labyrinth weirs, characterized by a curved cycle orientation, can enhance discharge efficiency compared to linear labyrinth weirs by taking advantage of the approaching flow field in reservoirs. This paper summarizes some of the Utah State University arced labyrinth weir hydraulic efficiency research findings, including sidewall and cycle arc angle influences, nappe aeration, and local submergence. Recent CFD modeling that replicates some of the experimental findings is also highlighted, demonstrating CFD utility for design. The Springton Spillway project, owned by Aqua Pennsylvania, leveraged this research when designing a two-stage, eight-cycle arced labyrinth weir to replace an aging ogee crest spillway in order to meet current flood safety standards. Drawing parallels to the Lake Isabella project, which integrated empirical data and physical modeling, the Springton spillway project exemplifies the application of research-based innovations in finding solutions to complex hydraulic challenges.