Question

what is the velocity (m/s) with which elementary wave can travelled upstream if the velocity in flow is 2m/s and depth of flow in channel in 1m?
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Answer 1

Explanation:

Velocity at which elementary wave can travel upstream (Vu/s) = C – V

Where,

C = celerity = \(\sqrt {gy} \)

y = depth of flow

C = \(\sqrt {9.81 \times 1} = 3.132\;m/s\)

Vu/s = 3.132 – 2 = 1.132 m/s