|
where indices
1 and 2
denote the upstream and downstream locations of the channel
ρ1 and
ρ2 denote the
densities at these locations and are generally the same
γ denotes the specific weight of the liquid
A1 and
A2 denote the areas of the channel at these locations and
for a
rectangular channel will equal
the width of the channel times the depth of
the channel at these locations
V1 and V2
denote the speeds of the liquid at these locations
Σ Fx denotes the component of force along the
channel
P1 and P2 denote the
pressures at 1 and at 2 P1 = γy1, P2 = γy2
y1 and y2 denote the
depths of the liquid above the channel bed at 1 and at 2
z1 and z2 denote the
elevations of the channel bed at 1 and at 2
hL
denotes the head loss due to friction between 1 and 2
|