rectangular weir

rectangular weir

[rek′taŋ·gyə·lər ′wer]
(civil engineering)
A weir with a rectangular notch at top for measurement of water flow in open channels; it is simple, easy to make, accurate, and popular.
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References in periodicals archive ?
Therefore, the first scenario was selected for trapezoidal weir, while the second one was employed for rectangular weir.
Rehbock [19] purposed the flowing equation based on experimental data for estimating discharge coefficient of the rectangular weir with wide equal to channel.
Razavian and Heydarpour [17] studied on the combined flow characteristics over rectangular weir - gate with unequal contractions.
11 What is the flow in a channel if a contracted rectangular weir with a 1-m crest length is placed in the channel and has a head of 0.
A variety of built-in flumes and weirs for determining flow rates including Parshall flumes, cut-throat flumes, California-pipe weirs, rectangular weirs and v-notch weirs.
Long rectangular weirs are too sensitive; slight differences in head can create significant imbalance.
The distribution box contains two rectangular weirs of unequal length set at the same elevation.