Topic
Flume
About: Flume is a research topic. Over the lifetime, 3565 publications have been published within this topic receiving 68254 citations.
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TL;DR: In this article, the effect of a sloping bed on the direction of sediment transport is determined by conducting bed-levelling experiments, and a distinction is made between laboratory conditions and natural rivers.
Abstract: Laboratory experiments have been conducted to provide data for modelling the direction of sediment transport on a transverse sloping alluvial bed. Conditions with prevailing bed-load transport, and conditions in which a significant part of the bed material is transported as suspended-load are studied. The effect of a sloping bed on the direction of sediment transport is determined by conducting bed-levelling experiments. Comparison of the results with data of curved flume experiments and experience gained with numerical computation of the bed topography in natural rivers yields the conclusion that, at least for bed-load transport, a distinction should be made between laboratory conditions and natural rivers. For conditions with suspended sediment transport the transverse slope effect can not be modelled identical as for bed-load transport.
262 citations
TL;DR: In this article, the hydraulic conditions under which the observed beds exist, indicates that the bed configuration at any point in the bay is a function of the local velocity, sediment size, and depth.
261 citations
TL;DR: In this paper, the initial results of flume study of alluvial channels are presented, detailed classification of regimes of flow, forms of bed roughness, and basic concepts pertaining to resistance to flow; description of experimental equipment and procedure; criteria for washout of dunes and for decrease of resistance to water flow; hysteresis observed at changes in dune bed.
Abstract: Paper presents initial results of flume study of alluvial channels; detailed classification of regimes of flow, forms of bed roughness, and basic concepts pertaining to resistance to flow; description of experimental equipment and procedure; criteria for washout of dunes and for decrease of resistance to flow; hysteresis observed at changes in dune bed.
259 citations
TL;DR: In this article, local clear-water scour tests were performed with three different diameter circular piles (0.114, 0.305, and 0.914 m) and three different uniform cohesionless sediment diameters.
Abstract: Local clear-water scour tests were performed with three different diameter circular piles (0.114, 0.305, and 0.914 m), three different uniform cohesionless sediment diameters (0.22, 0.80, and 2.90 mm) and a range of water depths and flow velocities. The tests were performed in the 6.1 m wide, 6.4 m deep, and 38.4 m long flume at the United States Geological Survey Conte Research Center in Turners Falls, Mass. These tests extend local scour data obtained in controlled experiments to prototype size piles and ratios of pile diameter to sediment diameter to 4,155. Supply water for this flow through flume was supplied by a hydroelectric power plant reservoir and the concentration of suspended fine sediment (wash load) could not be controlled. Equilibrium scour depths were found to depend on the wash load concentration.
254 citations
TL;DR: In this article, a longitudinal sediment sorting produced a rhytmic fluctuation in the bedload transposition of two different sized materials were continuously fed into a flume, in which two different sizes of sediment were fed into the flume.
Abstract: Laboratory experiments, in which two different sized materials were continuously fed into a flume, revealed that a longitudinal sediment sorting produced a rhytmic fluctuation in the bedload transp...
249 citations