5. Conclusion

This article provides an overview of the principles and applications of imaging techniques for fluid mechanics. Many of these techniques are commercially available on a "turnkey" basis, but they are still the subject of a great deal of development and research in laboratories, thanks to recent technological advances in the fields of sensors and lighting. Apart from the low interaction of lighting with the flow, these techniques systematically offer the major advantage of being non-intrusive.

Today, increasing acquisition speeds and spatial resolution are generating ever-greater volumes of data to be transferred and stored, which must be taken into account. At the same time, processing resources are also accelerating: GPUs, compute servers, artificial intelligence methods... enabling the extraction of increasingly sophisticated information.

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