Flow Retardance in Vegetated Channels

by Nicholas Kouwen,
T. E. Unny,
Harry M. Hill,

Serial Information: Journal of the Irrigation and Drainage Division, 1969, Vol. 95, Issue 2, Pg. 329-344

Document Type: Journal Paper


A quasi-theoretical analysis has been given for the flow retardance in vegetated channels. Based on this, a logarithmic flow formula has been derived for flow in these channels. The analysis has been illustrated with flow data obtained from channels in which natural vegetation was present and from a laboratory flume having flexible artificial roughness elements fixed to the bottom.

Subject Headings: Channel flow | Vegetation | Flumes | Hydraulic roughness

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