Experimental Modelling & Acoustics

The advantage of this centre is that it enables us to study complex wave phenomenawhen the wavelength is close to the size of the heterogeneities in the case of multiphase porous media, random media or granular media, which cannot be simulated using theory or purely numerical models.

It also allows the development of specific measurement tools (sonar, Ultra High Resolution sediment sounder, endoscopic probe...) as well as tomography or processing algorithms that can be directly validated in an acoustic tank, through easily reproducible experiments.

The problems considered range fromunderwater acoustics to the marine or land seismictheslope instability at evolving fractured environmentsenvironments including sedimentary ecosystemss, the media with variable porosities. The advantages of such a laboratory are :  

. The scaling up of geophysical phenomena, including chemical, biological or biophysical phenomena (sedimentary ecosystems), which are easily reproducible and inexpensive compared to full-scale studies of offshore campaigns or seismic field geoexploration.

and secondly:

. Rapid acquisition of data that can be transposed to that acquired in situ, where complex, evolving wave phenomena can be monitored and studied, taking three-dimensional effects into account.