Stochastic nature of turbulence over mobile bed channels

Dixit, Sudhanshu; Patel, P. L.

doi:10.1080/09715010.2018.1460628

Cited by 1 publication

(1 citation statement)

References 26 publications

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“…Forces acting on sediment depend on the flow attributes, such as turbulence characteristics and mean flow characteristics. A variety of studies in steady flow conditions have shown that there is mutual interaction between flow properties and movement of sediment, demonstrating that flow properties are modified in the presence of bedload as compared to the clear water (an absence of sediment transport) counterpart [44][45][46]. For example, near-bed velocity fluctuations, and consequently Reynolds shear stresses, diminish when the channel bed is movable [47].…”

Section: Hydrodynamic Aspects Of Sediment Transportmentioning

confidence: 99%

Impact of Unsteady Flow Events on Bedload Transport: A Review of Laboratory Experiments

Mrokowska

Rowiński

2019

Water

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Recent advances in understanding bedload transport under unsteady flow conditions are presented, with a particular emphasis on laboratory experiments. The contribution of laboratory studies to the explanation of key processes of sediment transport observed in alluvial rivers, ephemeral streams, and river reaches below a dam is demonstrated, primarily focusing on bedload transport in gravel-bed streams. The state of current knowledge on the impact of flow properties (unsteady flow hydrograph shape and duration, flood cycles) and sediment attributes (bed structure, sediment availability, bed composition) on bedload are discussed, along with unsteady flow dynamics of the water-sediment system. Experiments published in recent years are summarized, the main findings are presented, and future directions of research are suggested.

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