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Bed Load Discharge Coefficient
Using dimensional analysis, the bed-load discharge coefficient for the case of two-dimensional flow over dunes is expressed in terms of bed-form geometry and the sand size of the bed material. Experiments are conducted in a rectangular flume using artifical dunes and a flow visualization method to measure the flow separation length from which the bed-load coefficients were determined. The results show that the bed-load coefficient is affected significantly by sand-grain size only when the dunes are flat. When dunes are steep, the value of the bed-load coefficient is affected mainly by the dune steepness. Application of the bed-load coefficient results in some improvement of estimating bed load.
Bed Load Discharge Coefficient
Using dimensional analysis, the bed-load discharge coefficient for the case of two-dimensional flow over dunes is expressed in terms of bed-form geometry and the sand size of the bed material. Experiments are conducted in a rectangular flume using artifical dunes and a flow visualization method to measure the flow separation length from which the bed-load coefficients were determined. The results show that the bed-load coefficient is affected significantly by sand-grain size only when the dunes are flat. When dunes are steep, the value of the bed-load coefficient is affected mainly by the dune steepness. Application of the bed-load coefficient results in some improvement of estimating bed load.
Bed Load Discharge Coefficient
Engel, Peter (author) / Lau, Y. Lam (author)
Journal of the Hydraulics Division ; 107 ; 1445-1454
2021-01-01
101981-01-01 pages
Article (Journal)
Electronic Resource
Unknown
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