Environmental Hydraulics Laboratory LHE
Welcome on the LHE website.
Hydraulics and Geophysical Fluid Dynamics Group
Le Laboratoire d'Hydraulique Environnementale (LHE, environmental hydraulics laboratory) is a laboratory of the Civil Engineering Institute (IIC) of the school of Architecture, Civil and Environmental Engineering (ENAC)
The Environmental Hydraulics Laboratory (Laboratoire d'Hydraulique Environnementale, LHE) is a laboratory within the Civil Engineering Institute of the School of Natural, Architectural and Constructed Environmental Sciences (Faculté Environnement Naturel, Architectural et Construit) (ENAC).
Scientific activities and applications
The LHE is a laboratory of environmental fluid mechanics whose research strives toward a better understanding of hydraulic processes in the environment, with particular emphasis on the problems encountered in the Alps. The laboratory also investigates how scientific knowledge is incorporated into land-use planning policies. The field of research covered within the LHE includes the following topics:
- Dynamics of free-surface flows on steep slopes, with the objective of modeling natural hazards induced by water such as mudflows and avalanches.
- Physics of bed load transport, aiming at better management of sediments in waterways.
- Hydrodynamics of waterways, with the objective of studying free surface flow to better understand dynamic, transport phenomena within rivers including floods and dambreak waves (in mountain areas).
- Scientific models and risk management, with the objective of providing decision makers with scientific tools related to land use planning and natural hazard mitigation in mountain areas.
LHE in pictures
Field investigation of bedload transport in the Navisence river (Val d Anniviers, VS) with CREALP and the university of Jaén (prof. P. Bohorquez).
Sediment transport experiments.
Dam break problem
PIV experiments to measure velocity profiles within granular suspension flows.
Couette cell and rheometric investigations of granular suspensions.
Experimental and numerical investigation of impulse waves generated by snow avalanches (a collaboration with prof. M. Brocchini, university of Ancona).
Avalanche of a viscoplastic gel on a sloping bed
Powder snow avalanches
Dynamics of powder snow avalanches (Vallée de la Sionne, VS) with SLF (Dr B. Sovilla) and the University of Durham (prof. J. McElwaine).
Scientific models and natural hazard mitigation
Can we predict catastrophes? How can scientific expertise assist decision-makers in land use planning?
Experimental investigation of particle segregation in granular flows, a collaboration with the University of Manchester (prof. J.M.N.T. Gray).
|On 28 Jan 2012, Gaël Epely-Chauvin , PhD student in our laboratory, passed away in a diving accident just after he started exploring the "sources de la Chaudanne" (FR). Gaël was a shooting star, who lit up our lifes when passing overhead. .|
Field of expertise of LHE
- Geophysical fluid mechanics
- Snow avalanches
- Torrential hydraulics
- Risk management (in mountain areas)
- Rheology of suspensions
- Particulate flows
Laboratoire d'Hydraulique Environnementale (LHE)
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Fax: +41 (0) 21 693 67 67