Sediment Transportation Mechanics: F. Hydraulic Relations for Alluvial Streams

Task Committee for Preparation of the Sedimentation Manual, Committee on Sedimentation of the Hydraulics Division, ASCE

Serial Information: Journal of the Hydraulics Division, 1971, Vol. 97, Issue 1, Pg. 101-141

Document Type: Journal Paper


The several bed forms found in alluvial streams are described and the theoretical treatment of these forms is outlined briefly. The general problem of flow in alluvial streams is then analyzed in general terms and the variables governing such flows and the seven relationships between them are identified. Among these relationships are the friction factor relation and the sediment discharge relation which are of primary importance to engineers. This analysis serves as an introduction to the main part which deals with prediction of the stage-discharge relation. In this part several of the most important methods of calculating these relations are presented clearly and concisely. The paper will be of interest to many engineers and engineering students not only because it presents practical methods for calculating the relation between discharge, velocity and depth of alluvial streams but also because of the fundamental concepts outlined in it.

Subject Headings: Sediment transport | Hydraulics | Alluvial channels | Rivers and streams | Streamflow | Water discharge | Bed forms | Friction

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