UNIVERSAL HEAD vs FLOW
e.g. typical compound weir
Parameters
U0 = 11
A0 = 0 head, point 1 A12 = 1.05 head, point 7
A1 = 0 flow, point 1 A13 = 2.65 flow, point 7
A2 = 0.3 head, point 2 A14 = 1.2 head, point 8
A3 = 0.1 flow, point 2 A15 = 3.4 flow, point 8
A4 = 0.6 head, point 3 A16 = 1.4 head, point 9
A5 = 0.7 flow, point 3 A17 = 5.0 flow, point 9
A6 = 0.8 head, point 4 A18 = 1.7 head, point 10
A7 = 1.5 flow, point 4 A19 = 8.0 flow, point 10
A8 = 0.95 head, point 5 A20 = 2 head, point 11
A9 = 2.25 flow, point 5 A21 = 11.8 flow, point 11
A10 = 1 head, point 6
A11 = 2.5 flow, point 6
Head
A
even
A
odd
F
l
o
w
R
a
t
e
For best accuracy concentrate data points where changes in flow rate are the greatest.
7ML19985AB01 OCM III 81
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