P2=5
BS-3680 RECTANGULAR-NOTCH WEIR
U0 = Q
cal
The flowrate at full head
enter:
[value from specs.]
U1 = t
cal
The time units of Q
cal
enter:
[0] per second
[1] per minute
[2] per hour
[3] per day
U2 = h
cal
The head at which Q
cal
occurs
enter:
[value from specs.]
U3 = b
Width of the notch
enter:
[value from specs.]
U4 = B
Width of approach channel
enter:
[value from specs.]
U5 = p
Height of the crest above the bottom of the approach channel
enter:
[value from specs.]
VALUES CALCULATED BY OCM II
U6 = m
Side slope (0 for rectangular weir)
U7 = Ce
Coefficient of discharge at current head
U8 = Ce
cal
Coefficient of discharge at h
cal
Flowrate is given by:
Q = Q
cal
x Ce/Ce
cal
x (h+k
h
/h
cal
+k
h
)
1.5
; k
h
= 0.1 cm
PL-269
7 – 25
Содержание OCM II PL-269
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