Answer:
Bazin's formula is used to calculate the discharge of a channel or pipe. It is a empirical formula, which means that it is based on experimental data rather than theoretical principles. The formula is given by:
Q = 0.2785 C_d A^{1.5} \sqrt{H}
where:
* $Q$ is the discharge (in cubic meters per second)
* C_d is the Chezy coefficient (a dimensionless constant)
* A is the cross-sectional area of the channel or pipe (in square meters)
* H is the head (in meters)
The Chezy coefficient is a measure of the roughness of the channel or pipe. It can be determined experimentally or by using tables or charts.
Bazin's formula is a simple and easy-to-use formula for calculating the discharge of a channel or pipe. It is accurate for a wide range of conditions and is widely used in irrigation and other applications.
