Problem:
Patm
z
d
L
Name:
$\left(\frac{P_1}{\rho} + \frac{v_1^2}{2} + gz_1\right) - \left(\frac{P_2}{\rho} + \frac{v_2^2}{2} + gz_2\right) = h_{Ltot}$
$h_{Ltot} = h_f + h_{Lm}$
$h_f = f \frac{Lv^2}{D2}$
$h_{Lm} = K \frac{v^2}{2}$
$Re = \frac{\rho vD}{\mu}$
Patm
Water flows at 0.03 m³/s through a 75 mm diameter pipe, with L = 100 m, attached to a
constant level reservoir. Inlet loss coefficient, K = 0.5, p = 999 kg/m³, µ = 1 E-3 kg/m-s.
Find: the reservoir depth to maintain the flow.
