QUESTION $2$

Analyse the flow, for a $100$ cm wide rectangular channel with a crump weir. The following estimation have been made:

The crest is $45$ cm above the channel bottom.

The height of the upstream water level is $250$ mm

$2\mathrm{.}1$ Use the step$-$by$-$step method to calculate the flow through the crest crump weir. Do only $4$ iterations.

$2\mathrm{.}2$ Discuss what you would use the flow measurement data for?

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