In the pipe system shown below the pipe has a diameter of $30cm,$ and it is $275m$ long from $A$ to $S.$ The equivalent roughness height of the pipe, e$,$ is $0\mathrm{.}26mm.$ The kinematic viscosity is $n=1\mathrm{.}1310-6m\frac{2}{s}.$ The minor head loss coefficients are: $Ke=0\mathrm{.}5$ for entrance losses, and $Kd=1\mathrm{.}0$ for exit losses. The water surface elevations are $h1=730m,$ and $h2=505m.$ The discharge is $Q=440\frac{L}{s}.$

Determine the velocity of the flow between reservoirs in $\frac{m}{s}.$

Diameter $of$ Pipe, $D=30cm$

Length from $AtoS=275m$

Pipe roughness, $e=0\mathrm{.}26mm$

Total head $in$ reservoir $A=730m$

Total head $in$ reservoir $B=505m$

Elevation head $atS=714m$

$Q=440\frac{L}{s}$

Report $3-5$ sig figs, don't include units

Report $3-5$ sig figs, don't include units

Your Answer:

Answer

Hide hint for Question $1$

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Apply the energy eq'n

e$/$D must be unitless $($watch units!$)$

find $f$ using Haaland equation