Practical Computations of Bed - Material Discharge

by Bruce R. Colby,


Serial Information: Journal of the Hydraulics Division, 1964, Vol. 90, Issue 2, Pg. 217-246


Document Type: Journal Paper

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Abstract: At least five alternative measures of fluid forces or fluid velocities may have usually dominant effects on the discharge of bed-material in a sand-bed stream. Interrelationships among most of these measures vary widely with changes in the resistance to flow. Approximately defined average relationships between discharge of bed-material per foot of stream width and each of four usually dominant measures (mean velocity, stream power, and two forms of effective shear on the bed sediment) are shown graphically as possible bases for practical computations of bed-material discharge. Such usually secondary factors as depth of flow, particle size of the bed sediment, water temperature, and concentration of fine sediment affect each defined relationship, generally by different amounts.

Subject Headings: Bed materials | Fluid velocity | Sediment | Water discharge measurement | Flow measurement | Flow resistance | Computing in civil engineering

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