We are very proud to announce the publication of a new paper in Physical Review Fluids (PRF), a journal of the American Physical Society:
Rare-event detection in a backward-facing-step flow using live optical-flow velocimetry: Observation of an upstream jet burst
This publication marks an important milestone for Photon Lines and for eye4you, our brand of optical benches and state-of-the-art imaging platforms.
Through this article, it is notably eyePIV, our PIV software, whose capabilities for advanced flow diagnostics and data analysis have been highlighted through the study of rare events in unsteady flows.
Why?
Because in experimental fluid mechanics, detecting and characterizing intermittent and low-probability phenomena remains a major challenge for the scientific community, both from a fundamental and an industrial perspective.
This APS article, written by Juan Pimienta, PhD in fluid mechanics at Photon Lines, and Jean-Luc Aider, Research Director at the CNRS within the PMMH laboratory at ESPCI, documents advanced methodologies combining optical velocimetry measurements and high-performance data analysis techniques to better capture and understand these complex flow dynamics.
Above all, this work demonstrates the ability of eyePIV to provide experimental diagnostics adapted to highly unsteady and complex flows, enabling the investigation of phenomena that are often beyond the reach of conventional experimental approaches.
With eyePIV, we are no longer simply talking about flow visualization.
We are now talking about advanced physical analysis:
✅ detection of rare and intermittent events,
✅ analysis of unsteady flow dynamics,
✅ high-performance optical velocimetry diagnostics,
✅ investigation of complex flow phenomena,
✅ experimental measurements adapted to challenging fluid mechanics applications.
The most important thing for us, however, remains the scientific validation of these results. The methodologies and results presented in this article have been:
- experimentally validated on complex flow configurations,
- based on advanced optical measurement techniques,
- applied to challenging intermittent phenomena,
- and then reviewed and accepted by the APS community.
This recognition confirms that eyePIV is not merely a technological demonstration: it represents a powerful methodological tool for the study and analysis of complex and unsteady flows.
Congratulations to all the teams involved in this scientific and technological venture !
