Concept

Aeolian processes

Publications associées (175)

Flow and sediment dynamics in bed discordant channel confluences

Anton Schleiss, Koen Blanckaert, Marcelo Leite Ribeiro

Confluences between small steep tributaries with dominant supply of poorly sorted sediment and larger main channels with dominant flow supply, which are characterized by a pronounced bed discordance, have not yet been considered in the literature. The hydr ...

Tsinghua University Press2011

Numerical Simulation of Two-Phase Flow for Nearshore Hydrodynamics under Wave-Current Interactions

David Andrew Barry, Roham Bakhtyar, Amir Mehdi Razmi

Surf and swash zone hydrodynamics are complex, being composed of a highly energetic water-air mixture under periodically unsteady motion. Wave-current interactions have a major effect on the results of hydrodynamic simulations, and consequently on predicti ...

Coastal Education and Research Foundation2011

Cementitious matrices for high performance fibre reinforced cement composites (HPFRCC), in particular ultra-high performance fibre reinforced concretes (UHPFRC)

Emmanuel Denarié, Yves Houst

A cementitious matrix for Ultra-High Performance Fibre Reinforced Concrete (UHPFRC) containing the following constituents (in % mass of dry mix): a) 25 to 65 % Portland cement type CEM I; b) 25 to 70 % of Limestone filler; c) 5 to 15 % ultrafine mineral ad ...

2011

Chute Aerators : Steep Deflectors and Cavity Subpressure

Michael Pfister

Chute aerators are applied to high-velocity spillways to entrain air into the flow so that cavitation damage is avoided. Air entrainment occurs locally at the aerator, whereas further downstream the flow is deaerated. This process is relevant because it de ...

2011

Using spatial and spatial-extreme statistics to characterize snow avalanche cycles

Johan Alexandre Philippe Gaume

In December 2008, an intense avalanche cycle occurred in the eastern part of the southern French Alps. Using this case study, this paper illustrates how spatial statistics can be used to analyse such abnormal temporal clusters of snow avalanches. Spatial r ...

2011

Semi-empirical model for channel bed evolution due to lateral discharge withdrawal

Anton Schleiss, Burkhard Rosier

Side weirs and overtopable levees are widely used to increase flood routing along a channel or river. The lateral loss of water reduces the sediment transport capacity leading to the formation of a local sediment deposit close to the overflow. Since the ex ...

2010

Transport of nonsorbing solutes in a streambed with periodic bedforms

David Andrew Barry

Previous studies of hyporheic zone focused largely on the net mass transfer of solutes between stream and streambed. Solute transport within the bed has attracted less attention. In this study, we combined flume experiments and numerical simulations to exa ...

Elsevier2010

Tectonic controls on nearshore sediment accumulation and submarine canyon morphology offshore La Jolla, Southern California

Nicolas Le Dantec

CHIRP seismic and swath bathymetry data acquired offshore La Jolla, California provide an unprecedented three-dimensional view of the La Jolla and Scripps submarine canyons. Shore-parallel patterns of tectonic deformation appear to control nearshore sedime ...

Elsevier2010

Soil erosion under multiple time-varying rainfall events

David Andrew Barry, Seifeddine Jomaa

Soil erosion is a function of many factors and process interactions. An erosion event produces changes in surface soil properties such as texture and hydraulic conductivity. These changes in turn alter the erosion response to subsequent events. Laboratory- ...

2010

The effect of migrating dune forms on the flow field of an alluviral river

Koen Blanckaert

The bed of an alluvial river is highly susceptible to changes during the course of its existence. Besides variations of the large scale topography and plan form of the river, smaller scale dune forms can be observed. These recurring dune forms migrate on t ...

Ed. Dittrich, Koll, Aeberle & Geisenhainer (eds)2010

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