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Habilitation à diriger des recherches

Diagnostics Optiques des Milieux Multiphasiques

Abstract : This habilitation manuscript deals with the optical characterization of multiphase flows. It gathers three types of contributions. The first part concerns the modelling of the light scattering properties of various particles encountered in flows: homogeneous droplets, bubbles and fibres; spherical and cylindrical particles with internal refractive index gradients or coated; ellipsoidal, heterogeneous and irregular particles. These theoretical and numerical works are established in the framework of the Lorenz-Mie theory or with physical or geometrical approximations. The second part introduces the principle of several new optical techniques for the simultaneous characterization of the velocity, the size and material of flowing particles: Dual Bursts and Dual Mode techniques, Phase Doppler interferometry with 3 coherent beams, high resolution diffractometry, rainbow and critical scattering. The third part presents several works completed in collaboration, on subjects connected with: biophysics; combustion; instabilities of capillary and viscous jets, homogeneous and coated; glass-fibre drawing, optical fibres, thermosolutal instabilities and gas-solid circulating fluidized beds flows. This manuscript includes also a summary of my activities of teaching, valorization and management of research, as well as the reproductions of ten articles.
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Habilitation à diriger des recherches
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Contributor : Fabrice Onofri <>
Submitted on : Friday, June 13, 2008 - 1:45:54 PM
Last modification on : Tuesday, December 8, 2020 - 10:04:09 AM
Long-term archiving on: : Friday, September 28, 2012 - 4:00:13 PM


  • HAL Id : tel-00287927, version 1



Fabrice Onofri. Diagnostics Optiques des Milieux Multiphasiques. Physique [physics]. Université de Provence - Aix-Marseille I, 2005. ⟨tel-00287927⟩



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