Question

find the expression for the discharge over the triangular notch in terms of head of liquid over the crest of the notch and included angle? ​

Answer 1

Answer:

Notches can be of different shapes such as triangular, rectangular, ... The discharge over notch is measured by measuring the head acting over the notch. ... From the geometry of the figure, we find that,.

Answer 2

Answer:

A triangular notch gives much more accurate results in low discharge conditions, as compared to the conventional rectangular notch. Also, only one reading (the head) is required to calculate the discharge rate, making calculations much easier. However, it cannot handle large volumes of flow rate accurately.

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