Concept

Bed load

Related publications (141)

Flood Risk Management of the Avançon river – physical model based study

The sediment transport capacity of the Avançon river through the city of Bex in Switzerland is limited. During the October 2000 flood event, water levels rose to danger limits. After the flood, the river channel was completely filled with sediments, with a ...

International Research Society Interpraevent2012

Characterization of bedload transport in steep-slope streams.

Christophe Ancey, Joris Heyman, François Mettra

Large fluctuations in the sediment transport rate are observed in rivers, particularly in mountain streams at intermediate flow rates. These fluctuations seem to be, to some degree, correlated to the formation and migration of bedforms. Today the central q ...

2012

Steep flume experiments with large immobile boulders and wide grain size distribution as encountered in alpine torrents

Anton Schleiss, Tamara Ghilardi

Flow conditions and sediment transport capacity in steep mountain rivers are poorly known. One of the main problems is that the presence of macro-roughness elements, such as large relatively immobile boulders, have a strong influence. Experiments carried o ...

Taylor & Francis Group, CRC Press2012

Flow and sediment dynamics in channel confluences

Anton Schleiss, Koen Blanckaert, Marcelo Leite Ribeiro, André Roy

Confluences with relatively low discharge and momentum flux ratios where a small steep tributary with a high supply of poorly sorted sediment joins a large, low-gradient main channel commonly occur in nature, but they have not yet been investigated. Measur ...

2012

Influence of rock fragment coverage on soil erosion and hydrological response: Laboratory flume experiments and modeling

David Andrew Barry, Alessandro Brovelli, Seifeddine Jomaa

Two laboratory flume experiments on the effect of surface rock fragments on precipitation-driven soil erosion yields were carried out. The total sediment concentration, the concentration of seven individual size classes and the flow discharge were measured ...

American Geophysical Union2012

Bedload transport in steep mountain stream : a consistent stochastic framework.

Christophe Ancey, Joris Heyman, François Mettra

We demonstrate in this poster the role played by stochasticity in bedload transport on steep slope. Multiscale and multifractal behavior is observed, while long range correlation takes place. ...

2011

Influence of immobile boulders on bedload transport in a steep flume

Anton Schleiss, Tamara Ghilardi

When applied to mountain torrents, sediment transport formulae habitually overestimate the bedload by several orders of magnitude, even if they have been developed for steep slopes. The reason is that the influence of macro-roughness elements, such as larg ...

2011

Bedload transport on steep slope: a stochastic framework.

Christophe Ancey, Joris Heyman, François Mettra

Among the recent experimental studies focusing on the stochastic nature of bedload transport, some results are particularly intriguing: in experiments in which tagged particles (tracers) are tracked, the statistical moments of the time evolution of particl ...

2011

Experimental investigation of the bedload transport and anti-dunes over a steep bed.

Christophe Ancey, Joris Heyman, François Mettra

This poster present an experimental investigation of bedload transport in steep slope streams. Accurate technics are used to measure bed elevation and sediment transport rate. The data shows the dynamics of antidunes and the stochastic behavior of bedload ...

2011

A parameter study on bank shear stresses in curved open channel flow by means of large-eddy simulation

Koen Blanckaert

Meandering rivers and streams are a common planform in the world’s populated areas. Furthermore the recent increased focus on renaturalization projects has lead policy makers to also consider the partial remeandering of previously trained rivers. Economic ...

Tsinghua Univesity2011

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