Experimental study of segregation mechanisms in bedload sediment transport

A Dudill - 2016 - theses.hal.science
This research focuses upon size segregation mechanisms in bedload sediment transport.
Simplified experiments with fine grain inputs to a mobile coarse bed in equilibrium were …

Bed load transport of mixed size sediment: Fractional transport rates, bed forms, and the development of a coarse bed surface layer

PR Wilcock, JB Southard - Water Resources Research, 1989 - Wiley Online Library
Fractional transport rates, bed surface texture, and bed configuration were measured after a
mixed size sediment had reached an equilibrium transport state for seven different flow …

Infiltration of fine sediment into a coarse mobile bed: a phenomenological study

A Dudill, P Frey, M Church - Earth Surface Processes and …, 2017 - Wiley Online Library
Experiments were undertaken to study the nature of granular interaction in running water by
examining the influence of fine grain inputs to a coarser sediment bed with a mobile surface …

Introducing finer grains into bedload: the transition to a new equilibrium

A Dudill, H Lafaye de Micheaux, P Frey… - Journal of …, 2018 - Wiley Online Library
Simplified experiments on fine grain inputs to a coarse bed in mobile equilibrium were
undertaken in a small, steep, narrow flume using spherical glass particles to study the …

Interrelationships between bed morphology and bed‐material transport for a small, gravel‐bed channel

JB Laronne, MA Carson - Sedimentology, 1976 - Wiley Online Library
Bed conditions (micro‐relief, textural associations and packing structural arrangements) in
the gravel‐bed channel of Seale's Brook are shown to be closely interrelated; various …

Response of bed surface patchiness to reductions in sediment supply

PA Nelson, JG Venditti… - AGU Fall Meeting …, 2005 - ui.adsabs.harvard.edu
In most gravel-bed rivers, and in many gravel-bedded flumes, the bed surface is typically
arranged into patchy areas of similar grain size and sorting. Despite the ubiquity of …

Size–density sorting of sand‐size spheres during deposition from bedload transport and implications concerning hydraulic equivalence

JR Steidtmann - Sedimentology, 1982 - Wiley Online Library
It is well known that sediment sorting according to size, shape and density occurs, but the
exact mechanisms involved are poorly understood. To assess the effects of size and density …

Experiments on grain size segregation in bedload transport on a steep slope

P Frey, HL de Micheaux, C Bel, R Maurin… - Advances in Water …, 2020 - Elsevier
Sediment transport in mountain and gravel-bed-rivers is characterized by bedload transport
of a wide range of grain sizes. When the bed is moving, dynamic void openings permit …

Characterization of bed load sediment transport at the grain scale

J CAMPAGNOL - 2013 - politesi.polimi.it
The research project described in this thesis concerns the study of the bed load sediment
transport at the grain scale. It was developed mainly with the aims of analyzing the …

[PDF][PDF] Insight on how bed configuration affects properties of bed load motion

J Campagnol, A Radice, F Ballio - Proceedings of ICSE, 2012 - researchgate.net
According to the traditional works on sediment transport, the prediction of an expected
transport rate is related to the bulk properties of water flow and sediment [Shields, 1936; …