(c) LEGI

The facts & the project

Hydroelectricity accounts for 16% of world electricity production. It is the leading renewable energy source. Whilst it has been in use for over a century, there are still challenges that need to be overcome in order to boost output and extend its potential.

Working in collaboration with various industrial partners, a team from the LEGI (Laboratoire des Ecoulements Géophysiques et Industriels) in Grenoble studied the dynamic of the flows for a variety of technical solutions for producing electricity from an hydraulic source: From major hydroelectric installations (in association with Alstom) to marine turbines in rivers or at sea (in association with HydroQuest).

The results

These studies involved very high resolution numeric simulations carried out using 12.3 million hours on GENCI’s Turing computer at Idris.

Compared with the standard statistical simulations carried out in industry, these simulations provide a much more precise description of the flows. This means that a better understanding of the influence of vortex instabilities on the output is now possible, enabling the development of new ways of controlling these.

This work was performed using the YALES2 code in the context of the “SUCCESS” Scientific Interest Grouping at CNRS.