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Atomization and Sprays

Publication de 12  numéros par an

ISSN Imprimer: 1044-5110

ISSN En ligne: 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

Indexed in

ULTRASHORT PULSE OFF-AXIS DIGITAL HOLOGRAPHY FOR IMAGING THE CORE STRUCTURE OF TRANSIENT SPRAYS

Volume 28, Numéro 6, 2018, pp. 565-578
DOI: 10.1615/AtomizSpr.2018024340
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RÉSUMÉ

A single-shot Ultra-short Pulse Off-axis Digital Holography (UPODH) system successfully images microscopic details of fuel injection phenomena that are hidden from view by a dense cloud of droplets surrounding the near-nozzle region. The experiment approximates the optically dense conditions typical of fuel injection in modern diesel engines. Under these conditions an outer layer of small droplets can hide a core of larger droplets or liquid ligaments; this core is inaccessible to most imaging techniques due to multiple-scattering in the outer layer. These conditions are mimicked by intentionally surrounding a core spray with a fine mist. The mist has a Sauter mean diameter of 4.28 microns. The core spray comes from driving water, with pressure ranging from 1 to 13.8 Bar, through single orifices of 0.1 and 0.3 mm diameter. The whole spray field shows nearly opaque transmissivities as low as 6×10-6. Transient phenomena, such as sheets of liquid becoming ligaments and their further break up into small particles are easily visible even when surrounded by the opaque mist with an optical density (OD) of 12. Holographic reconstruction allows these phenomena to be clearly observable in 3-D, and single droplets as small as 25 μm are resolved. The 3-D capability allows UPODH to bring into focus small particles and ligaments at different depth planes, even centimeters apart.

CITÉ PAR
  1. Poblador-Ibanez Jordi, Davis Branson W., Sirignano William A., Self-similar solution of a supercritical two-phase laminar mixing layer, International Journal of Multiphase Flow, 135, 2021. Crossref

  2. Davis Branson W., Poblador-Ibanez Jordi, Sirignano William A., Two-phase developing laminar mixing layer at supercritical pressures, International Journal of Heat and Mass Transfer, 167, 2021. Crossref

  3. Poblador-Ibanez Jordi, Sirignano William A., Liquid-jet instability at high pressures with real-fluid interface thermodynamics, Physics of Fluids, 33, 8, 2021. Crossref

  4. Poblador-Ibanez Jordi, Sirignano William A., A volume-of-fluid method for variable-density, two-phase flows at supercritical pressure, Physics of Fluids, 34, 5, 2022. Crossref

  5. Poblador-Ibanez Jordi, Sirignano William A., Temporal atomization of a transcritical liquid n-decane jet into oxygen, International Journal of Multiphase Flow, 153, 2022. Crossref

  6. Wu Xuecheng, Lin Wenhui, Wang Lei, Song Ge, Wu Yingchun, Measurement of airblast atomization of low temperature kerosene with 25  kHz digital holography, Applied Optics, 60, 4, 2021. Crossref

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