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Broad-crested weirs are commonly incorporated in hydraulic structures of various types and, although sometimes used to measure water flow, this is usually a secondary function. The components of a sharp-crested weir are shown in Figure 1 .
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www.flowmeterdirectory.com/flowmeter_artc/flowmeter_art...
www.flowmeterdirectory.com/flowmeter_artc/flowmeter_artc_02021403.html
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Interactive website for weir and open channel design calculations, software ... The rectangular weir is the most commonly used thin plate weir. Weirs are typically installed in open channels such as streams to determine discharge (flowrate). The basic principle is that discharge is directly related to the water depth (h) in...
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www.lmnoeng.com/Weirs/RectangularWeir.htm
www.lmnoeng.com/Weirs/RectangularWeir.htm
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This study deals with hydraulic characteristics for different weir types and effects on upstream migration of fish in a pool-weir fishway, and presents an ...
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linkinghub.elsevier.com/retrieve/pii/S0925857400001257
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Sample Weir #1 ... Modeling as a sharp-crested weir ... Many questions arise about the proper application of the broad-crested weir equation. In general, the broad-crested weir capability is useful only in cases where the discharge coefficient varies with head.
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www.hydrocad.net/weir1.htm
www.hydrocad.net/weir1.htm
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Flow Advisor - Weir Flow Calculations. Pipe pressure drop software from Pipe Flow for friction loss, flow rates and pipe diameter sizing. ... Flow from Weirs; Flow from Weirs may be used to estimate the water flow rate discharged. The calculations can be performed on different types of weir:
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www.pipeflow.co.uk/public/control.php?_path=/497/595/59...
www.pipeflow.co.uk/public/control.php?_path=/497/595/598
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A description of common weir types for use in open channel, sewer and detention pond design. ... A compound weir is a combination of multiple weir types. For example, a V-notch weir might easily handle the normal range of discharges at a structure; but occasionally, much larger flows would require a rectangular weir.
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www.bossintl.com/weirs.html
www.bossintl.com/weirs.html
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One method of producing such turbulence is via the overflow jets downstream of weir structures. This paper investigates the effect of varying weir types on the air entrainment rate. Empirical correlations predicting the maximum penetration depth and air entrainment rate were developed for different weir types.
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cat.inist.fr/?aModele=afficheN&cpsidt=15360206
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The weir is one of the oldest structures used to measure the flow of water in open channels. ... The types of traditional fully contracted weirs commonly used and considered standard for measuring irrigation water are: ... A few weir tables are extended by measured data outside of equation limits...
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www.usbr.gov/pmts/hydraulics_lab/pubs/wmm/chap07_04.htm...
www.usbr.gov/pmts/hydraulics_lab/pubs/wmm/chap07_04.html
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3. Flume and Weir Types and Construction Methods There are a wide variety of flow measurement methods and devices available for any given channel where water measurement is needed.
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www2.alterra.wur.nl/Internet/webdocs/ilri-publicaties/p...
www2.alterra.wur.nl/Internet/webdocs/ilri-publicaties/publicaties/Pub58/pub58-h3.0.pdf
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