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Atomization and Sprays

Published 12 issues per year

ISSN Print: 1044-5110

ISSN Online: 1936-2684

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 1.2 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 1.8 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 0.3 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.00095 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.28 SJR: 0.341 SNIP: 0.536 CiteScore™:: 1.9 H-Index: 57

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MODELING THE EFFECTS OF GAS DENSITY ON THE DROP TRAJECTORY AND BREAKUP SIZE OF HIGH-SPEED LIQUID DROPS

Volume 9, Issue 5, 1999, pp. 497-517
DOI: 10.1615/AtomizSpr.v9.i5.40
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ABSTRACT

An experimental and numerical study has been conducted of drop trajectories and breakup mechanisms for liquid drops injected into high-velocity gas flows with various chamber gas pressures at room temperature. In the experimental study, air-assisted liquid drop atomization processes were investigated using photographic techniques under well-controlled experimental conditions. A monodisperse stream of drops from a vibrating-orifice drop generator was injected into a transverse high-velocity gas stream. The back pressures and gas velocities were adjusted independently to control the drop Weber numbers. The Weber numbers used in the experiments were 72, 148, 270, and 532. High-magnification photographs and conventional spray-field photography revealed the microscopic breakup mechanisms and the parent drop trajectory in the high-velocity flow field, respectively. Drop sizes were measured using a phase/Doppler particle analyzer. The experimental results were used to test and assess spray models in the KIVA3 code. The breakup model considered Kelvin-Helmholtz (K-H) instability mechanisms to account for secondary drop breakup. The computations show good agreement with experimental results of parent drop trajectories and for the spatial drop size distributions which result from secondary breakup at high gas densities. At low gas densities, it is concluded that the use of the K-H model to predict drop breakup may not be justified, since the drops are observed to break up in the bag-breakup regime which is characterized by membrane stretching breakup.

CITED BY
  1. Guildenbecher D. R., López-Rivera C., Sojka P. E., Secondary atomization, Experiments in Fluids, 46, 3, 2009. Crossref

  2. Sanjosé M., Senoner J.M., Jaegle F., Cuenot B., Moreau S., Poinsot T., Fuel injection model for Euler–Euler and Euler–Lagrange large-eddy simulations of an evaporating spray inside an aeronautical combustor, International Journal of Multiphase Flow, 37, 5, 2011. Crossref

  3. Khare Prashant, Ma Dongjun, Chen Xiaodong, Yang Vigor, Phenomenology of Secondary Breakup of Newtonian Liquid Droplets, 50th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition, 2012. Crossref

  4. Zhao Hui, Liu Hai-Feng, Li Wei-Feng, Xu Jian-Liang, Morphological classification of low viscosity drop bag breakup in a continuous air jet stream, Physics of Fluids, 22, 11, 2010. Crossref

  5. Liao Bin, Chen Shanqun, Vortex-ring-induced elliptical drop deformation process in ambient liquid under an impact: The effects of the drop shape and other parameters, Annals of Nuclear Energy, 152, 2021. Crossref

  6. Zhao Hui, Liu Hai-Feng, Cao Xian-Kui, Li Wei-Feng, Xu Jian-Liang, Breakup characteristics of liquid drops in bag regime by a continuous and uniform air jet flow, International Journal of Multiphase Flow, 37, 5, 2011. Crossref

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