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International Journal of Energetic Materials and Chemical Propulsion
ESCI SJR: 0.142 SNIP: 0.16 CiteScore™: 0.29

ISSN Imprimer: 2150-766X
ISSN En ligne: 2150-7678

International Journal of Energetic Materials and Chemical Propulsion

DOI: 10.1615/IntJEnergeticMaterialsChemProp.v5.i1-6.740
pages 714-724

ELASTIC LASER SCATTERING AS A DIAGNOSTIC TOOL IN REACTING TWO-PHASE SYSTEMS

Aldo Coghe
Dip. Energetica, Politecnico di Milano, Milano, Italy

RÉSUMÉ

In two-phase combustion environments, optical diagnostic methods are preferable because they are non-interfering, even though problems of beam access can be serious in practical cases. The potentially more attractive techniques are based on the interaction of laser light and matter because they are capable of in situ detection of physical properties (velocity, size and concentration) of small solid or liquid particles. Moreover, very high space and time resolution may be achieved, depending on the light source, detection mode, and photo-sensor type. This paper is an overview about elastic light scattering diagnostic methods used for determination of particle size, velocity and number density in particle laden flows. No attempt, however, is made to review the very large and scattered literature. The relevant techniques are presented and discussed, with their limitations and related difficulties in both basic and applied configurations. Although the selected techniques are quite suitable for use in reacting flows, the discussion is general and not specifically directed at propulsion systems.


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