Civil Engineering Reference
In-Depth Information
TABLE 26-10. Coefficients and Exponents for Free Flow Through Cutthroat Flumes with Head in Feet
cfs
gpm
mgd
Length (ft)
Width (ft)
n
1
K
C
K
C
K
C
9.00
1.000
1.560
3.500
3.500
1571
1571
2.262
2.262
9.00
2,000
1.560
3,500
7.122
1571
3197
2.262
4.603
9.00
4,000
1,560
3,500
14.49
1571
6505
2,262
9.367
9.00
6.000
1.560
3.500
21.96
1571
9857
2.262
14.19
4.50
0.250
1.720
3.980
0.9611
1786
431.3
2.572
0.6212
4.50
0.500
1.720
3.980
1.956
1786
877.8
2.572
1.264
4.50
1.000
1.720
3.980
3.980
1786
1786
2.572
2.572
4.50
2.000
1.720
3.980
8.099
1786
3635
2.572
5.234
3.00
0.167
1.840
4.500
0.7171
2020
321.9
2.908
0.4635
3.00
0.333
1.840
4.500
1.459
2020
655.0
2.908
0.9432
3.00
0.667
1.840
4.500
2.970
2020
1333
2.908
1.919
3.00
1.333
1.840
4.500
6.043
2020
2712
2.908
3.906
1.50
0.083
2.000
6.400
0.5012
2872
2224.9
4.136
0.3239
1.50
0.167
2.000
6.400
1.020
2872
457.7
4.136
0.6592
1.50
0.333
2.000
6.400
2.076
2872
1896
4.136
2.730
1.50
0.667
2.000
6.400
4.224
2872
1896
4.136
2.730
(Courtesy of Isco, Inc.)
