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Optical characterization of bubbly flows with a near-critical-angle scattering technique |
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| Authors: | Fabrice R. A. Onofri Mariusz Krzysiek Janusz Mroczka Kuan-Fang Ren Stefan Radev Jean-Philippe Bonnet |
| Affiliation: | 1. IUSTI, UMR n° 6595 CNRS, University of Provence, Polytech’DME, Technop?le Chateau-Gombert, 5 rue E. Fermi, 13453, Marseille Cedex 13, France 2. CEPM, Technical University of Wroclaw, 50-317, Wroclaw, Poland 3. CORIA, UMR n° 6614 CNRS, University of Rouen, 76 801, Saint-Etienne-du-Rouvray, France 4. IMECH, Bulgarian Academy of Sciences, 1113, Sofia, Bulgaria 5. M2P2, UMR n° 6181 CNRS, University Paul Cézanne, 13545, Aix-en-Provence Cedex 4, France |
| Abstract: | The newly developed critical angle refractometry and sizing technique (CARS) allows simultaneous and instantaneous characterization of the local size distribution and the relative refractive index (i.e. composition) of a cloud of bubbles. The paper presents the recent improvement of this technique by comparison of different light scattering models and inversion procedures. Experimental results carried in various air/water and air/water-ethanol bubbly flows clearly demonstrate the efficiency and the potential of this technique. |
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