Research

Main Research Areas

The main topic of the research carried out at LCH concentrates on the interaction of hydraulic structures and schemes with water, air, underground and environment. Research at LCH has essentially  focuses on a better understanding of the physical process in view of practical application in order to answer to actual and future concerns of the civil engineering profession.

The main research areas are:

  • Overland flow on macro roughness, precipitation – runoff models, formation and management of floods, forecasting of floods in catchments area influenced by reservoirs
  • Determination of design floods and security of hydraulic schemes (dams and hydro power plants)
  • Erosion of alpine watersheds by rain and surface flow, sediment transport mechanisms and silting-up of reservoirs (simulation of processes and development of measures to handle density and turbidity currents)
  • Numerical modeling of surface flows (two phase and unsteady flows)
  • Sediments transport in rivers
  • Influence of macro roughness of river protection works on scouring in river bends, influence of a side weir on sediment transport in a channel
  • Erosion of fissured media due to high velocity jets; propagation of dynamic pressures within fissures and rock joints, scour downstream of dams, influence of plunge pool geometry
  • High velocity flow over macro roughness, overflow dams and fuse plugs
  • Influence of the macro roughness of river banks on the traveling velocity of waves in channels due to hydropower peaking operation
  • Lake shore protection measures, interaction of structures with waves and sediment transport, behavior and design of floating oil retaining reservoir against oil spills
  • Design and analysis of appurtenant structures of hydropower plants and dams
  • Design of high pressure tunnels and shafts by taking into account of hydraulic-mechanical interactions (influence of stresses on permeability), drainage of steel linings by valves to prevent buckling

The studies involve both numerical and physical modeling.
For a detailed description of the ongoing research projects, see Activity Report chapter 1.1