SI Units (metric): k = 0.082, d in m, and ds in mm.
U.S. Customary Units: k = 0.067, d in ft, and ds in mm.
SI units (metric)
U.S. Customary units
Flow depth d :
Particle size ds :
Manning's friction coefficient n :
Froude F ≥
Your request was processed at 08:44:55 pm on June 24th, 2017 [
170624 20:44:55 ].