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Evaluation of bed load equations using field measured bed load and bed material load
ISH Journal of Hydraulic Engineering, 2019Bed load transport can be determined by direct measurement of bed load being transported by a stream. In India, measurement of bed load is rarely done.
Sanjaykumar Madhusudan Yadav +2 more
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Journal of Hydraulic Engineering, 1985
The difference between the sediment transport processes of bed load and suspended load is explained and quantified. The mean and fluctuating components of the particle motion are studied by examining both components of the particle's dynamics in open channel flows.
Peter J. Murphy, Eduardo J. Aguirre M.
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The difference between the sediment transport processes of bed load and suspended load is explained and quantified. The mean and fluctuating components of the particle motion are studied by examining both components of the particle's dynamics in open channel flows.
Peter J. Murphy, Eduardo J. Aguirre M.
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Bed carbon loadings in fluid bed combustion
Combustion and Flame, 1987Observations of bubble phase burning in a fluidized bed combustor have led to the hypothesis that CO and volatile matter burn mainly inside bubbles and in the freeboard during the fluidized combustion of coal. Predictions of bed-carbon loading using a model have shown that the site of gas-phase combustion has a strong influence on predicted bed-carbon ...
P.T. Roberts, L.C. Shirvill, L.T. Cowley
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Bed load transport by bed form migration
Acta Geophysica, 2012A theoretically-based methodology is presented for the determination of bed load transport from high-resolution measurements of bed surface elevations for steady-state or developing dunes. The methodology is based on the general form of the Exner equation for sediment continuity and requires information on the distribution of sediment volume ...
Jochen Aberle +2 more
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Bed‐Load Sampling in Sand‐Bed Rivers
Journal of Hydraulic Engineering, 1994Bed‐load sampling in sand‐bed rivers was studied. A mechanical sampler called the Delft Nile sampler was designed and operated in flume and field conditions. The flume data obtained for different bed material sizes in the range of 280–1,070 μm were used to determine the sampling efficiency factor of the bedload sampler.
Moustafa T. K. Gaweesh, Leo C. van Rijn
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Bed Load Discharge Coefficient
Journal of the Hydraulics Division, 1981Using 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 ...
Peter Engel, Y. Lam Lau
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Sedimentology, 1972
ABSTRACTApplication of sieve and size‐shape analyses (Moss, 1962) to natural and artificial bed‐load deposits of shallow, unidirectional currents revealed that a textural sequence parallels one of primary structures. With increasing grain size and/or transporting power, sedimentary characteristics followed the stepwise pattern: fine ripple bed stage ...
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ABSTRACTApplication of sieve and size‐shape analyses (Moss, 1962) to natural and artificial bed‐load deposits of shallow, unidirectional currents revealed that a textural sequence parallels one of primary structures. With increasing grain size and/or transporting power, sedimentary characteristics followed the stepwise pattern: fine ripple bed stage ...
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1999
Following on the discussions of patterns of sediment motion and its initiation in Chapters 5 and 8, this chapter introduces various theories and formulas of bed load motion. The first section treats theories and formulas for uniform bed load, and the second and the third sections discuss the effects of non-uniformity of particle size on the transport ...
Ning Chien, Zhaohui Wan
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Following on the discussions of patterns of sediment motion and its initiation in Chapters 5 and 8, this chapter introduces various theories and formulas of bed load motion. The first section treats theories and formulas for uniform bed load, and the second and the third sections discuss the effects of non-uniformity of particle size on the transport ...
Ning Chien, Zhaohui Wan
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Journal of Hydraulic Engineering, 1992
A methodology is developed for evaluation of bed-load transport based on the analytical solution presented in a previous publication. The present-day knowledge of this subject is such that it required empirical determined coefficients to evaluate bed-load transport.
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A methodology is developed for evaluation of bed-load transport based on the analytical solution presented in a previous publication. The present-day knowledge of this subject is such that it required empirical determined coefficients to evaluate bed-load transport.
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Bed Load Fluctuation: Applications
Journal of the Hydraulics Division, 1982Based on the distribution of transport rate, the fluctuation of bed load and its application to hydrological measurement have been studied. The variance and coefficient of variation of transport rate for uniform sand and nonuniform sand with determinate and random size distribution have been derived.
Qiwei Han, Mingmin He
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