Publication de 12 numéros par an
ISSN Imprimer: 1044-5110
ISSN En ligne: 1936-2684
Indexed in
EFFERVESCENT ATOMIZATION OF HIGH-VISCOSITY FLUIDS: PART II. NON-NEWTONIAN LIQUIDS
RÉSUMÉ
Previous Newtonian effervescent atomization work is extended to non-Newtonian fluids, with the influence of non-Newtonian fluid rheology being of particular interest. Mean drop size data obtained during this study show no dependence on either non-Newtonian flow behavior index or consistency index, as they varied from 0.85 to 0.95 and 400 to 968 cP sn−1, respectively. An increase in mean drop size relative to a Newtonian fluid with equal apparent viscosity was observed, however, upon addition of polymer. This phenomena is attributed to the yield stress associated with polymeric fluids. These observations suggest that primary atomization is unimportant during effervescent spray formation and that secondary atomization is the controlling factor.
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