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Journal of Flow Visualization and Image Processing

Published 4 issues per year

ISSN Print: 1065-3090

ISSN Online: 1940-4336

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: 0.6 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: 0.6 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: 0.00013 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: 0.14 SJR: 0.201 SNIP: 0.313 CiteScore™:: 1.2 H-Index: 13

Indexed in

OPTICAL VISUALIZATION AND MEASUREMENT OF LIQUID JET CORE IN A COAXIAL ATOMIZER WITH ANNULAR SWIRLING AIR

Volume 25, Issue 3-4, 2018, pp. 229-244
DOI: 10.1615/JFlowVisImageProc.2018027766
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ABSTRACT

This paper reports application of the optical connectivity (OC) technique for visualization and measurement of primary liquid jet core in a coaxial air-blast atomizer with annular swirling air flow. Experiments were conducted for various injector operating flow conditions corresponding to Weber number (Weg) and air-to-liquid momentum flux ratio (M) in the range 80–300 and 1–8, respectively. The air swirl number, S, was varied in the range 0–0.8 using different air swirlers within the atomizer. The image processing methods for characterization of jet breakup length and jet instabilities were described in detail. Visualization of the instantaneous images of the jet core captured by the OC technique in the absence and presence of air swirl were presented. Both mean and fluctuations of liquid jet breakup lengths were calculated. An experimental correlation was obtained for mean breakup length, which was found to bear a nonlinear inverse relation with both M and S. The air swirl was found to increase the fluctuations of jet breakup length signifying higher unsteadiness in the jet breakup process. Preliminary results on characterization of jet instabilities based on identification of liquid–air interface location on either side of the injector axis on the OC images were presented. The differences due to the effect of air swirl on jet instabilities close to the injector exit and near the mean jet breakup point were discussed.

CITED BY
  1. Kumar Abhijeet, Sahu Srikrishna, Large scale instabilities in coaxial air-water jets with annular air swirl, Physics of Fluids, 31, 12, 2019. Crossref

  2. Kumar Abhijeet, Sahu Srikrishna, Influence of nozzle geometry on primary and large-scale instabilities in coaxial injectors, Chemical Engineering Science, 221, 2020. Crossref

  3. Kumar Abhijeet, Sahu Srikrishna, Liquid jet disintegration memory effect on downstream spray fluctuations in a coaxial twin-fluid injector, Physics of Fluids, 32, 7, 2020. Crossref

  4. Guo Jin-Peng, Wang Yi-Bo, Bai Fu-Qiang, Du Qing, Instability breakup model of power-law fuel annular jets in slight multiple airflows, Physics of Fluids, 32, 9, 2020. Crossref

  5. Kumar Abhijeet, Sahu Srikrishna, Preheated liquid jet breakup dynamics in a twin-fluid injector, Chemical Engineering Science, 257, 2022. Crossref

  6. Liang Yifan, Johansen Lars Christian, Linne Mark, Breakup of a laminar liquid jet by coaxial non-swirling and swirling air streams, Physics of Fluids, 34, 9, 2022. Crossref

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