Question

A trapezoidal notch has a base width of 0.75 m and a side slope of
1 horizontal : 2 vertical. Calculate the discharge over the notch for a head of
0.50 m by assuming C = 0.63.​

Answer 1

Step-by-step explanation:

Given A trapezoidal notch has a base width of 0.75 m and a side slope of 1.horizontal : 2 vertical. Calculate the discharge over the notch for a head of  0.50 m by assuming C = 0.63.

• So we have m = 0.50
• So tan theta = 0.50
• So for a head the discharge Q = 2/3 Cd √2g H1^3/2 (L + 4/5 H1 tan theta)
•                                                      = 2/3 x 0.63 x √2 g x (0.50)^3/2 (0.75 + (4/5 x 0.5 x 0.5)
•                                                       = 0.66 x 0.63 x √19.6 x 0.3535 (0.75 + 0.2)
•                                                                        = 0.65073 x 0.95
•                                                                        = 0.618 m^3/s
• So the discharge over the notch will be 0.618 m^3/s

Reference link will be

https://brainly.in/question/14999815