This activity started in 2017 when I was PI of UTHIM project, funded by
Institut Carnot “LSI”.
Our contribution was the design of a software platform to characterize
ultrasonic signals propagated in a dynamic and non-stationary water
flows. This software has been integrated in the Hydro signal platform of
GIPSA-lab : GIPSA-lab, laboratoire de recherche Grenoble,
Images,
Parole, Signal, Automatique (gipsa-lab.fr)
From 2018, in collaboration with LEGI (LEGI -
UMR 5519
) – Professor Henda DJERIDI, we started the
collaboration in the field of double state and turbulent flow
characterizaiton using acoustic tomography. The aim of our research is
to define the multisensor ultrasonic instrumentation and the algorithms
for the extraction of flow dynamics characteristics in turbulent and
bi-phasic flow conditions. The algorithmes are developped along two
directions. The first one is to design the ultrasonic signals emitted by
the system in order to enhance their interference with the flow dynamic
(Doppler sensitive waveforms). The second direction is to build the new
reprsentation spaces where the hydraulic parameters can be properly
estimated (multi lag phase diagram representation and the compressive
techniques to estimate the parameters).
The successive results converge to the definition of a multi
disciplinary global plate-form for the ultrasonic analysis of the
dynamic flows. Thanks to the Grenoble INP funding, in 2019-2020, we
succeded to build the ATIS - Acoustic Tomography for Flow
Instabilities
Study defined below and placed in the Hydro Signal plate-form as
indicated in the above figure.
This platform is open to use for educational purposes (1-2 student
projects per year as well as master/PhD), research and industrial
partnerships as for instance the one with MOTRHYS or
General Electric (one thesis GIPSA-lab and General Electric will start
in early 2021).