Publications associées à Instabilité gravitaire

Bottom slope influence on flow and bedload transfer through contractions

Anton Schleiss, Mário Jorge Rodrigues Pereira Da Franca, Sebastian Schwindt

In-stream open check dams are essential for flood protection at mountain rivers that are characterized by steep slopes (>1%) and sediment-laden flood discharges. These structures comprise an opening acting as a lateral or vertical flow contraction to force ...

2019

Modeling Solid-fluid Transitions in Snow Avalanches Using the Material Point Method

Johan Alexandre Philippe Gaume, Alec van Herwijnen

Snowslab avalanches start with the failure of a weak snow layer buried below a cohesive snow slab. After failure,the very porous character of the weak layer leads toits volumetric collapse and thus closing of crack facesdue to the weight of the overlaying ...

2019

The effects of slide cohesion on impulse waves generated by landslides

Christophe Ancey, Zhenzhu Meng

When gravity-driven mass flows, such as avalanches and landslides, enter bodies of water, they can generate large impulse waves whose effects can be devastating. Experimental studies of impulse wave formation have mostly used rigid blocks or granular mater ...

Swiss Academy of Science, SCNAT2019

Sediment mass movement of a particle-laden turbidity current based on ultrasound velocity profiling and the distribution of sediment concentration

Giovanni De Cesare, Shun Nomura, Jumpei Hitomi

Particle-laden flows or turbidity currents along the seafloor are important to the formation and erosion of submarine topography. To understand the mass-transport process, flume tests were carried out with a continuous supply of quartz-laden suspension. Th ...

2018

Swiss Rainfall Mass Curves and their Influence on Extreme Flood Simulation

Anton Schleiss, Javier García Hernández, Bettina Schaefli, Fränz Zeimetz, Guillaume Mathieu Artigue

Extreme flood estimates for dam safety are routinely obtained from hydrologic simulations driven by selected design storms. The temporal structure of such design storms can be obtained from Rainfall Mass Curves (RMCs), which are adimensionalized curves of ...

2018

Morphological resilience to flow fluctuations of fine sediment deposits in bank lateral cavities

Anton Schleiss, Mário Jorge Rodrigues Pereira Da Franca, Carmelo Juez Jiménez, Matthias Thalmann

Lateral cavities are built in the banks of rivers for several purposes: to create harbors, to capture sed- iment, to keep a central navigable channel (i.e., Casiers de Girardon in the Rhone river) or to promote the formation of aquatic habitats if a limite ...

2018

Local snow transport and surface evolution processes in East Antarctica

Varun Sharma, Michael Lehning, Wolf Hendrik Huwald, Nander Wever, Francesco Comola, Eric Sauvageat, Philip Crivelli

In Antarctica, direct measurements of processes shaping the surface mass balance such as precipitation, accumulation and erosion, drifting and blowing snow, and sublimation, are sparse and challenging due to the extreme environment and related difficulties ...

2018

The dam-break problem for eroding viscoplastic fluids.

Christophe Ancey, Belinda Margaret Bates

Natural gravity-driven flows can increase in volume by eroding the bed on which they descend. This process is called basal entrainment and is thought to play a key role in the bulk dynamics of geophysical flows. Although its study is difficult using field ...

Elsevier2017

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Instabilité gravitaire

Bottom slope influence on flow and bedload transfer through contractions

Modeling Solid-fluid Transitions in Snow Avalanches Using the Material Point Method

The effects of slide cohesion on impulse waves generated by landslides

The effects of slide cohesion on impulse waves generated by landslides

Sediment mass movement of a particle-laden turbidity current based on ultrasound velocity profiling and the distribution of sediment concentration

Swiss Rainfall Mass Curves and their Influence on Extreme Flood Simulation

Morphological resilience to flow fluctuations of fine sediment deposits in bank lateral cavities

Local snow transport and surface evolution processes in East Antarctica

The dam-break problem for eroding viscoplastic fluids.

Influence of outlet discharge on the efficiency of turbidity current venting

Graph Chatbot

Chattez avec Graph Search

Bottom slope influence on flow and bedload transfer through contractions

The dam-break problem for eroding viscoplastic fluids.

The effects of slide cohesion on impulse waves generated by landslides

Morphological resilience to flow fluctuations of fine sediment deposits in bank lateral cavities

Influence of outlet discharge on the efficiency of turbidity current venting

Modeling Solid-fluid Transitions in Snow Avalanches Using the Material Point Method

The effects of slide cohesion on impulse waves generated by landslides

Sediment mass movement of a particle-laden turbidity current based on ultrasound velocity profiling and the distribution of sediment concentration

Swiss Rainfall Mass Curves and their Influence on Extreme Flood Simulation

Local snow transport and surface evolution processes in East Antarctica