Broad-Crested Weirs: Difference between revisions
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[[Category:Spillway Control Structures]] | [[Category:Spillway Control Structures]] | ||
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“A weir is a notch of regular form through which water flows. The structure containing the notch is also called a weir. The edge over which the water flows is the crest. The two basic types of [[weirs]] are sharp-crested weirs and broad-crested weirs. Most hydraulic structures have broad-crested weirs. The crest is horizontal | {{Picture | ||
and long in the direction of flow so flow maintains contact with the crest rather than springing clear. The level crest in an earthen auxiliary spillway of a flood control dam is an example of a broad-crested weir."<ref name="NRCS650">[[National Engineering Handbook: Chapter 3 - Hydraulics|National Engineering Handbook, Part 650, Chapter 3 - Hydraulics, NRCS, 2021]]</ref> | <!-- Add image file name (ex.image.jpg) --> | ||
|image= Cromwell_Weir.jpg | |||
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|caption= Cromwell Weir, Nottinghamshire. | |||
(Image Source: [https://commons.wikimedia.org/wiki/File:Cromwell_Weir_-_Nottinghamshire_(Geograph_2561867_by_Jonathan_Thacker).jpg Jonathan Thacker]) | |||
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“A weir is a notch of regular form through which water flows. The structure containing the notch is also called a weir. The edge over which the water flows is the crest. The two basic types of [[weirs]] are [[Sharp-Crested Weirs|sharp-crested weirs]] and broad-crested weirs. Most hydraulic structures have broad-crested weirs. The crest is horizontal and long in the direction of flow so flow maintains contact with the crest rather than springing clear. The level crest in an earthen auxiliary spillway of a flood control dam is an example of a broad-crested weir."<ref name="NRCS650">[[National Engineering Handbook: Chapter 3 - Hydraulics|National Engineering Handbook, Part 650, Chapter 3 - Hydraulics, NRCS, 2021]]</ref> | |||
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Latest revision as of 14:53, 25 July 2023
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| Cromwell Weir, Nottinghamshire.
(Image Source: Jonathan Thacker) |
“A weir is a notch of regular form through which water flows. The structure containing the notch is also called a weir. The edge over which the water flows is the crest. The two basic types of weirs are sharp-crested weirs and broad-crested weirs. Most hydraulic structures have broad-crested weirs. The crest is horizontal and long in the direction of flow so flow maintains contact with the crest rather than springing clear. The level crest in an earthen auxiliary spillway of a flood control dam is an example of a broad-crested weir."[1]
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Revision ID: 7442
Revision Date: 07/25/2023