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ISSN Печать: 1044-5110
ISSN Онлайн: 1936-2684
Indexed in
ENTRAINMENT BY CONVENTIONAL EFFERVESCENT SPRAYS
Краткое описание
Entrainment numbers (E) for conventional effervescent atomizer-produced sprays are reported. Entrainment numbers were calculated using the expression of Ricou and Spalding [12] plus measured spray entrainment and momentum rate data determined during this study. Results showed that entrainment number increases with liquid viscosity, with atomizer exit orifice diameter, and with the combined effects of surface tension and liquid density. This is in contrast to results reported for ligament-controlled effervescent atomizer sprays [6], in which fluid physical properties had no significant effect. A possible cause for this discrepancy is the known unsteadiness of conventional effervescent sprays [11]. Dimensionally scaling entrainment numbers by liquid density and orifice diameter collapsed the majority of the data onto a single line. The modified form for E describes the entrainment behavior of conventional effervescent sprays to within 25%.
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Liu Meng, Duan Yufeng, Zhang Tienan, Xu Yiqian, Evaluation of unsteadiness in effervescent sprays by analysis of droplet arrival statistics – The influence of fluids properties and atomizer internal design, Experimental Thermal and Fluid Science, 35, 1, 2011. Crossref
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Nourian Amir, Nasr Ghasem, Pillai Daniel, Waters Mark, Compressed gas domestic aerosol valve design using high viscous product, The International Journal of Multiphysics, 8, 4, 2014. Crossref
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Asmuin Nor Zelawati, Design for Two-Fluid Fine Nozzle with 50% Fill Ratio, Applied Mechanics and Materials, 773-774, 2015. Crossref
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Nourian Amir, Nasr Ghasem G, Yule Andrew J, Goldberg Tom, Tulloch Greig, Next generation of consumer aerosol valve design using inert gases, Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 229, 16, 2015. Crossref