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- h~r~ = reference level
- L = length of weir
- b = width of weir
- h~1~ = upstream water level
- H~1~ = upstream energy level
- H~2~ = downstream energy level
Q = C~g~ . C~d~ . b .
03 -
C~d~ = 0.9564 + 1.018!03 - Stage discharge^image077.gif! - 3.530!03 - Stage discharge^image079.gif!
+ 4.936!03 - Stage discharge^image081.gif! - 2.302!03 - Stage discharge^image083.gif!
The validity range for calculating the C~d~ values is : 0.08 << 0.78
The modular limit is obtained from:
H~2~ /H~1~ = 0.30
In case the modular limit is exceeded a missing value is entered for the discharge.Triangular broad-crested weir
Parameters: - h~r~ = reference level
- P = height of vertex above the bottom
- L = length of weir
- b = width of weir
- h~tr~ = height of triangle
- H~1~ = upstream energy level
- H~2~ = downstream energy level
Two cases are distinguished:
a. H~1~ £1.25 h~tr~ , then:
Q = C~g~ C~d~
b. H~1~ > 1.25 h~tr~ , then:
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