Fluid Mechanics and Acoustics Laboratory - UMR 5509

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Micro-channel cavitation

The quality of the fuel spray is highly related to the phenomena observed in the injection nozzle, especially turbulence and cavitation. Different optical methods have been set up and the resulting images have been processed (shadowgraphy, Schlieren, interferometry, image correlation) in order to determine how cavitation appears and develops in a micro-channel.

Cavitation onset in a micro-channel.
Upper pressure: 50 bar.
Instantaneous velocity of turbulent structures in the channel and probability of cavitation.
Upper pressure: 50 bar.

This work was supported by the FUI NADIA-bio (New Advanced Diesel Injection Analysis for bio fuels) and was labelled by the French Automotive Cluster Move’o.


Mauger C, Méès L, Michard M, Lance M. Velocity measurements based on shadowgraph-like image correlations in a cavitating micro-channel flow. Int. J. Multiph. Flow. 2014;58:301–312.


Mauger C. Cavitation dans un micro-canal modèle d'injecteur diesel : Méthodes de visualisation et influence de l'état de surface. Lance M, Méès L, eds [Ph.D. thesis]. École centrale de Lyon; 2012.
Mauger C, Méès L, Michard M, Azouzi A, Valette S. Shadowgraph, Schlieren and interferometry in a 2D cavitating channel flow. Exp. Fluids. 2012;53:1895–1913.