Abstract
The chapter begins with a conceptual explanation of the hydraulics of conveyance structures with multiple possible control features: how to analyse the effect of each, and how to identify the actual control for a specified upstream head or discharge. Following a description of the general configuration of spillways, the design characteristics and analyses of the hydraulic behaviour of common spillway types are presented. These include overflow, labyrinth, piano key, side-channel, side weir, shaft, and siphon spillways, and smooth and stepped chutes. Some general concepts of cavitation are presented, as well as various approaches for describing self-aeration on chute and spillway surfaces, including prediction of the inception location, the concentration of air and the aerated flow depth. This is followed by a brief description of devices used for enhancing aeration.
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James, C.S. (2020). Spillways. In: Hydraulic Structures. Springer, Cham. https://doi.org/10.1007/978-3-030-34086-5_4
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DOI: https://doi.org/10.1007/978-3-030-34086-5_4
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