Nonuniform Flow in Aggrading Channels

by Jagdish P. Soni, Assoc. Prof. in Civ. Engrg.; Punjab Agricultural Univ., Ludhiana, India,
Kittur G. Ranga Raju, Prof. in Civ. Engrg.; Univ. of Roorkee, Roorkee, India,
Ramachandra J. Garde, Prof. in Civ. Engrg.; Univ. of Roorkee, Roorkee, India,


Serial Information: Journal of the Waterway, Port, Coastal and Ocean Division, 1977, Vol. 103, Issue 3, Pg. 321-333


Document Type: Journal Paper

Abstract: The problem of resistance to flow and sediment transport rate under nonuniform flow conditions obtained in aggrading channels has been investigated experimentally. Manning's roughness coefficient on the aggrading reach is seen to be generally smaller than its value for uniform flow. The resistance law under nonuniform flow conditions is seen to be the same as for uniform flow, provided the local friction slope is used instead of bed slope in the former case. However, the sediment transport formulas for steady uniform flows cannot be directly applied to the nonuniform flow conditions obtained in aggrading streams.

Subject Headings: Nonuniform flow | Flow resistance | Channel flow | Sediment transport | Uniform flow | Load and resistance factor design | Slopes | Transport rates

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