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Two of the most useful and
basic equations are
where
Dh
= Head loss in feet of flowing fluid
u = Velocity in
ft/sec
g = 32.2 ft/sec2
P = Pressure in lb/ft2
V = Specific volume
in ft3/lb
Z = Elevation in feet
E = Head loss due to
friction in feet of flowing fluid
In Equation 1 Dh
is called the “velocity head.” This expression has a wide range of utility not appreciated
by many. It is used “as is” for
1.
Sizing
the holes in a sparger
2.
Calculating
leakage through a small hole
3.
Sizing
a restriction orifice
4.
Calculating
the flow...
