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Analyse des transferts massique et thermique dans des écoulements diphasiques par le couplage de diagnostiques optiques


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Titre de la revue : Experiments in Fluids Volume : 45 N° : 2 Pagination : 187-201 Date de publication : 01/08/2008

Type de document > *Article de revue

Mots clés > aspersion, diagnostiques optiques, TOSQAN, transferts de masse et de chaleur

Unité de recherche > IRSN/DSU/SERAC/LECEV

Auteurs > LEMAITRE Pascal, PORCHERON Emmanuel

Date de publication > 01/08/2008

Résumé

During the course of a hypothetical accident in a nuclear power plant, spray might be activated in order to reduce static pressure in the containment. To have a better understanding of the heat and mass transfers between a spray and the surrounding confined gas, non-intrusive optical measurements have to be achieved simultaneously on both phases. The coupling of Global Rainbow Refractometry with Out-Of-Focus Imaging and Spontaneous Raman Scattering Spectroscopy allows calculating the local Spalding parameter BM that describes the mass flux between the droplets and the surrounding gas.