A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
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.
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.
Spillways
James, C S (author)
Hydraulic Structures ; Chapter: 4 ; 105-168
2019-12-20
64 pages
Article/Chapter (Book)
Electronic Resource
English
Conveyance structures , Control , Spillways , Design flood , Overflow spillway , Spillway crest shape , Discharge coefficient , Crest gates , Labyrinth , Piano key , Side-channel spillway , Side weir , Shaft spillway , Siphon spillway , Cavitation , Cavitation index , Chutes , Interference waves , Translatory waves , Stepped chutes , Stepped spillways , Nappe flow , Skimming flow , Aeration , Self-aeration , Bulked flow depth , Boundary layer , Air concentration Engineering , Geoengineering, Foundations, Hydraulics , Building Construction and Design , Offshore Engineering , Mechanical Statics and Structures , Engineering Fluid Dynamics
SPILLWAYS: Residual energy in stepped spillways
Online Contents | 1994
| British Library Conference Proceedings | 1992
| British Library Online Contents | 2010
| Engineering Index Backfile | 1922
| Engineering Index Backfile | 1922