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Atomization and Sprays

Publicou 12 edições por ano

ISSN Imprimir: 1044-5110

ISSN On-line: 1936-2684

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Indexed in

PREDICTING DROP SIZE DISTRIBUTIONS FROM FIRST PRINCIPLES FOR NON-NEWTONIAN FLUIDS

Volume 11, Edição 6, 2001, 22 pages
DOI: 10.1615/AtomizSpr.v11.i6.10
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RESUMO

An analytical method for predicting drop size distributions in sprays where primary atomization dominates has been applied to non-Newtonian (viscoelastic) fluids. The method is based on an application of the discrete probability function (DPF) technique to an existing instability analysis of a viscoelastic jet. In the present work, drop size distributions produced by an effervescent atomizer spraying single-phase viscoelastic fluids are predicted. The effect of fluctuations in fluid physical properties (relaxation time, zero shear viscosity, and surface tension), two-phase flow parameters (interphase velocity slip ratio), and atomizer operating parameters (ALR) is reported. The effect of one and two simultaneously fluctuating parameters on the drop size distribution is investigated. The results indicate that ALR and interphase velocity slip ratio, rather than liquid physical properties, have the most significant effect on the drop size distribution.

CITADO POR
  1. Fu Qing-Fei, Yang Li-Jun, Qu Yuan-Yuan, Gu Bin, Linear Stability Analysis of a Conical Liquid Sheet, Journal of Propulsion and Power, 26, 5, 2010. Crossref

  2. Keshavarz Bavand, Houze Eric C., Moore John R., Koerner Michael R., McKinley Gareth H., Ligament Mediated Fragmentation of Viscoelastic Liquids, Physical Review Letters, 117, 15, 2016. Crossref

  3. Déchelette A., Babinsky E., Sojka P. E., Drop Size Distributions, in Handbook of Atomization and Sprays, 2011. Crossref

  4. Sovani S.D, Sojka P.E, Lefebvre A.H, Effervescent atomization, Progress in Energy and Combustion Science, 27, 4, 2001. Crossref

  5. Babinsky E., Sojka P.E., Modeling drop size distributions, Progress in Energy and Combustion Science, 28, 4, 2002. Crossref

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