Step-by-step solved example
n=0.020, R=1.0 m, S=0.001. V by Manning/Chézy SI?
1. Manning
V=(1/0.02)×1^{2/3}×√0.001=50×0.03162=1.58 m/s.
2. C
C=R^{1/6}/n=1/0.02=50, V=50√0.001=1.58 m/s.
Answer: V = 1.58 m/s
n=0.020, R=1.0 m, S=0.001. V by Manning/Chézy SI?
1. Manning
V=(1/0.02)×1^{2/3}×√0.001=50×0.03162=1.58 m/s.
2. C
C=R^{1/6}/n=1/0.02=50, V=50√0.001=1.58 m/s.
Answer: V = 1.58 m/s
1.Manning SI V=
2.USCS 1.486 exists because
3.R for a full circle is
4.Rougher n →
5.Uniform flow means
6.C=40, R=2 m, S=0.0004: V=
7.Most efficient rectangle has
8.n for clean earth channel is nearest
9.S must be
10.Darcy-Weisbach in a wide channel can be matched to Manning by