Results 221 to 230 of about 17,304 (263)

An Expression for Bed-Load Transportation

Journal of the Hydraulics Division, 1963
A formula for the calculation of bed-load transportation per unit time and per unit width of the flow is suggested. This formula is valid for steady and uniform turbulent flow and for bed material consisting of grains of equal size and shape. It is assumed that the laminar sublayer of the turbulent flow is smaller than the size of the grains, and that ...
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Bed Load Transport of Sediment Mixtures

Journal of Hydraulic Engineering, 1986
Experiments were conducted on alluvial beds of four sediment mixtures having different arithmetic mean diameters and standard deviations. The bed load transport rates of individual fractions were measured. Einstein's method, Proffitt and Sutherland's method, and Misri's method of calculation of the bed load transport of individual fractions for ...
Belle R. Samaga, Kittur G. Ranga Raju, Ramchandra J. Garde   +2 more
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Formulas for the Transportation of Bed Load

Transactions of the American Society of Civil Engineers, 1942
A method for the representation of bed-load data is given in this paper. The method is based on the conception that bed-load transportation is the movement of bed particles, as governed by the laws...
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Bed-Load Transport

2014
The mode of sediment transport where the sediment particles slide, roll, or travel in succession of low jumps close to the bed is known as bed-load transport. In this chapter, theories of bed-load and formulations to predict the bed-load transport rate are presented. The pioneering attempt to predict the bed-load transport rate was due to MP du Boys in
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BED LOAD TRANSPORT OF BIMODAL SEDIMENTS

ISH Journal of Hydraulic Engineering, 2009
ABSTRACT Computation of bed load transport of bimodal sediments is a complicated task due to complex interaction of the grain sizes in two modes. The data on bimodal sediments from the previous investigations is used to check the performance of existing method which is based on data of unimodal and weakly bimodal sediments (Patel et al., 1996). Further,
P. L. Patel, Mayank Jain
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Estimators of alluvial bed load transport

Earth Surface Processes, 1977
The equilibrium stream represents a compromise between three tendencies: (i) to maximize grain size, (ii) to maximize quantity of bed load transported, and (iii) to minimize bed shear stress (which represents, among other things, water discharge).
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Erosion And Transport Of Bed-Load Sediment

Journal of Hydraulic Research, 1976
In this thesis first a general derivation is given of the 'macro'-equations of mass- and linear-momentum balance that govern the mo'mentum transfer from a Newtonian fluid to rigid particles in a fluid-solid mixture. In particular, attention is paid to a) the attenuation of viscous-momentum transfer from the boundary to the interior of a granular bed ...
R. Fernandez Luque, R. Van Beek
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Wave-induced Bed Load Transport

1984
A theory is developed for the velocity and concentration distribution within a moving layer of sediment in oscillatory flow. The bed is assumed flat and consequently all of the sediment moves as bed load. Tests have been carried out in an oscillatory-flow water tunnel.
R. V. Ahilan, J. F. A. Sleath
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BED LOAD TRANSPORT IN THE PRESENCE OF WASH LOAD TRANSPORT

ISH Journal of Hydraulic Engineering, 2007
ABSTRACT Experiments were conducted in a 30 m long 0.204 m wide and 0.5 m deep tilting flume to study the effect of different equilibrium concentration of wash load transport on the transport of uniform and nonuniform sediments through an alluvial channel and on the composition of active bed layer.
N. K. Khullar, U. C. Kothyari, K. G. Ranga Raju   +2 more
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A Stochastic Model Of Bed Load Transport

Journal of Hydraulic Research, 1971
(1971). A Stochastic Model Of Bed Load Transport. Journal of Hydraulic Research: Vol. 9, No. 4, pp. 527-554.
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