Question

Calculate the discharge through the rectangular notch when the head over the notch is 1.5 m and cd =0.62

Answer 1

Explanation:

Discharge through a rectangular notch is given by

$Q=C_d\frac{2}{3} L\sqrt{2g}H^{1.5}$

Given: L, length of the notch=1.5 m

Cd= coefficient of discharge = 0.62

H= head over the notch

plugging the values we get the value of discharge.

$Q=0.62\frac{2}{3} (1.5)\sqrt{2\times9.81}H^{1.5}$

We cannot calculate the exact values as the Head is not given in the question.

Answer 2

Explanation:

calculate the discharge through the rectangular notch when the head over the north is 1.5 and CD is equal to 0.2