Question

The depth of flow in an alluvial channel is 2.5 m. If critical velocity ratio is 1.1, then the critical velocity of flow through the channel as per Kennedy's method is ___________ m/s.

• A. 1.09

Answer 1

The correct option is A 1.09
Critical velocity,

$V_0=0.55m{y}^{0.64}$

$=0.55\times 1.1\times {2.5}^{0.64}$

$=1.0875m/s$

$\simeq 1.09m/s$