Question two

a$)$ Weter is discharged from a reservoir into the atmosphere through a pipe $100$ mm in diameter and $200$ m long. The entrance to the pipeline is a sharp entrance $)=(0\mathrm{.}5$ to the pipe and a global valve $)=(10$ is included to control the flow as shown. The kinematic viscosity is $1{10}^{-0}\frac{m^2}{s}$ and the pipe absolute roughness is $0\mathrm{.}20$ mm $.$ Considering separation and friction losses determine the discharge.