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02000CE206052001

in terms of dimensionless parameters using Buckingham 7- theorem as

− ⋃ Q
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Find the slope of free water surface in a rectangular channel of width 3 m and
depth of flow 0.75 m. The discharge through the channel is 0.84 115. The bed
of the channel is having a slope of 0.15 m per km. Assume Chezy’s constant, C
as 55.

With a neat sketch explain the characteristics of water surface profile in critical
sloped channels.

A 1: 50 spillway model has a discharge of 1.25 m°/s. What is the corresponding
prototype discharge? If a flood phenomenon takes 12 hours to occur in the

prototype, how long should it take in the model?

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