For the channel section given in Problems 13.1 and 13.2, construct the M-y diagram on the same graph for Q = 4, 6, and 8 3 /s. Find the critical depth for each case. Problems 13.1 A hydraulic jump is...

For the channel section given in Problems 13.1 and 13.2, construct the M-y diagram on the same graph for Q = 4, 6, and 8
3 /s. Find the critical depth for each case.

Problems 13.1

A hydraulic jump is formed in a trapezoidal channel of 2.0-m bed width, 1: 1 side slope, and carrying a discharge of 6.0 m3 Is. The initial and final depths of the jump are 0.5 m and 2.0 m, respectively. Concrete blocks are placed to stabilize the jump. Calculate the minimum weight of these blocks if the coefficient of friction between the blocks and channel bed,
, is 0.6.

Problems 13.2

Construct the M-y diagram for a parabolic channel having a peripheral equation of y =
 • The channel carries a discharge of 6
/s. Find the conjugate depth for an initial depth of 1.25 m.