Single Exponential, P-40 = 1 ( cont’d )
FLUMES ( cont’d )
Cutthroat Flume
» similar to Parshall flume
except that the floor is flat
bottomed and throat has no
virtual length
» refer to manufacturer’s
specifications for flow
equation and point of head
measurement.
Flow through the following flumes may be measured using the
universal head vs flow characterization, P-40 = 4.
Trapezoidal Flume
» similar to Parshall flume
except that the floor is
flat bottomed and walls
are sloped.
Dual Range ( nested ) Parshall Flume
» two flumes, a
larger on top of
the smaller, in
order to handle
a larger range
of flows.
plan
isometric
plan
front
PL-443 6 – 36
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