Publications associées à Orage

Complex turbulent flow in the atmospheric boundary layer: Lab and field measurements of embedded canopy wakes

Fernando Porté Agel, Corey Dean Markfort, Fernando Carbajo Fuertes

Natural and anthropogenic fragmented landscapes are pervasive and this complexity significantly affects the structure of the atmospheric boundary layer, causing classic similarity theories to break down. This is especially true in areas affected by wake tu ...

2015

HYMEX-SOPI The Field Campaign Dedicated to Heavy Precipitation and Flash Flooding in the Northwestern Mediterranean

Alexis Berne

The Mediterranean region is frequently affected by heavy precipitation events associated with flash floods, landslides, and mudslides that cause hundreds of millions of euros in damages per year and, often, casualties. A major field campaign was devoted to ...

American Meteorological Society2014

Orographic effects on snow deposition patterns in mountainous terrain

Michael Lehning, Alexis Berne, Marc Schneebeli Zeugin, Danny Eddy Scipion Castillo

Orographic lifting of air masses and other topographically modified flows induce cloud and precipitation formation at larger scales and preferential deposition of precipitation at smaller scales. In this study, we examine orographic effects on small-scale ...

Wiley-Blackwell2014

Effects of successive floods on bed load transport in a steep flume.

Christophe Ancey, Joris Heyman, Blaise Etienne Marceau Dhont, Pascal Venetz

Rivers in mountainous areas are subject to cyclic perturbations due for instance to summer storms or daily variations in snowmelt. Such phenomena cause successive floods occurring under very similar forcing conditions. However, as shown by several field st ...

2014

Canopy wake measurements using multiple scanning wind LiDARs

Fernando Porté Agel, Corey Dean Markfort, Giacomo Valerio Iungo, Fernando Carbajo Fuertes

Canopy wakes have been shown, in controlled wind tunnel experiments, to significantly affect the fluxes of momentum, heat and other scalars at the land and water surface over distances of O(1 km), see Markfort et al. (EFM, 2013). However, there are current ...

2014

Cavitation surge modelling in Francis turbine draft tube

François Avellan, Christophe Nicolet, Sébastien Alligné

Francis turbines may experience cavitation surge phenomenon in the draft tube inducing large pressure fluctuations which can jeopardize the hydraulic system integrity. To predict this phenomenon, a one-dimensional draft tube model is derived from flow mome ...

Taylor & Francis Ltd2014

Vegetation establishment in convectively accelerated streams

Paolo Perona, Benoît Crouzy, Peter Molnar

We study the conditions for vegetation establishment within river reaches with converging boundaries. Common to many such rivers worldwide is the existence of a limiting front (e.g., Figure 1a) beyond which all the riverbed vegetation is uprooted by floodi ...

2013

Numerical investigations of the dynamics of the full load vortex rope in a Francis turbine.

François Avellan, Andres Müller, Nicolas Ruchonnet, Olivier Braun, Adrien Taruffi

The draft tube vortex rope occurring in Francis Turbines at full load is a potential cause of severe system instabilities, limiting the operating range of concerned hydro power plants. Studies focusing on physical mechanisms [1], methods for stability asse ...

2013

Review of the TBM performance in blocky rocks with potential face stability issues

Jian Zhao, Andrea Delisio

In blocky/jointed rock masses, the combined effects of the rock mass structure and the in-situ state of stress may lead to severe instabilities of the excavation face which may become "blocky". Large breakout and rock block detachment from the tunnel face ...

Crc Press-Taylor & Francis Group2013

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Orage

Complex turbulent flow in the atmospheric boundary layer: Lab and field measurements of embedded canopy wakes

HYMEX-SOPI The Field Campaign Dedicated to Heavy Precipitation and Flash Flooding in the Northwestern Mediterranean

Orographic effects on snow deposition patterns in mountainous terrain

Effects of successive floods on bed load transport in a steep flume.

Canopy wake measurements using multiple scanning wind LiDARs

Cavitation surge modelling in Francis turbine draft tube

MODÉLISATION HYDROLOGIQUE DE LA BIRSE

Vegetation establishment in convectively accelerated streams

Numerical investigations of the dynamics of the full load vortex rope in a Francis turbine.

Review of the TBM performance in blocky rocks with potential face stability issues

Graph Chatbot

Chattez avec Graph Search

Orographic effects on snow deposition patterns in mountainous terrain

MODÉLISATION HYDROLOGIQUE DE LA BIRSE

Effects of successive floods on bed load transport in a steep flume.

Canopy wake measurements using multiple scanning wind LiDARs

Cavitation surge modelling in Francis turbine draft tube

Vegetation establishment in convectively accelerated streams

Numerical investigations of the dynamics of the full load vortex rope in a Francis turbine.

Review of the TBM performance in blocky rocks with potential face stability issues

Complex turbulent flow in the atmospheric boundary layer: Lab and field measurements of embedded canopy wakes

HYMEX-SOPI The Field Campaign Dedicated to Heavy Precipitation and Flash Flooding in the Northwestern Mediterranean