From: Vortex model of plane turbulent air flows in channels
Re
1844
2013
2293
3285
4653
5731
14147
24428
41441
f
0.26
0.21
0.17
0.105
0.068
0.055
0.028
0.019
0.014
\(\sigma\)
0.995
0.975
0.96
0.938
0.945
0.95
0.972
0.9805
0.986