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雾化与喷雾

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ISSN 打印: 1044-5110

ISSN 在线: 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

ANALYSIS OF HOLLOW-CONE SPRAY INJECTED IN AN UNCONFINED, ISOTHERMAL, COANNULAR SWIRLING JET ENVIRONMENT

卷 27, 册 1, 2017, pp. 7-29
DOI: 10.1615/AtomizSpr.2016016249
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摘要

The present work experimentally investigates the near- and far-field breakup, dispersion, and coalescence characteristics of a hollow-cone spray in an unconfined, low speed coannular isothermal swirling air jet environment. All the experiments were conducted at fixed liquid flow rate (ReN = 7900), with various levels of coflowing annular swirling air (Res = 1600, 3200, 4800, and 5600). Swirling motion was imparted to the coaxial airflow using a guided vane swirler with a blade angle of Φ = 45° (corresponding geometric swirl number SG = 0.8). Initial experiments were focused towards characterizing swirling airflow using PIV. Later the shadowgraphy technique was employed to study the effect of swirling air flow on the global and local dynamics of the spray. Measurements were made in the spray in both axial and radial directions. The data indicate that Sauter mean diameter (SMD) in the radial direction is highly reliant on the intensity of swirling air imparted to the spray. The spray is subdivided into two zones as function of swirling air in the axial and radial directions: (1) near field of the nozzle (ligament regime) where variation in SMD arises predominantly due to primary breakup of liquid films; (2) far field of the nozzle where dispersion and collision induced coalescence of droplets is dominant. Each regime has been analyzed meticulously, by computing the probability of primary breakup, the probability of coalescence, and spatiotemporal distribution of droplets which gives a probabilistic estimate of the aforementioned governing phenomena. In addition to this, spray global length scale parameters such as spray cone angle, breakup length, and wavelength of liquid film has been characterized by varying Res while maintaining constant ReN.

对本文的引用
  1. Rajamanickam Kuppuraj, Basu Saptarshi, On the dynamics of vortex–droplet interactions, dispersion and breakup in a coaxial swirling flow, Journal of Fluid Mechanics, 827, 2017. Crossref

  2. Sharma Shraddha, Ghate Kushal, Sundararajan Thirumalachari, Sahu Srikrishna, Effects of air swirler geometry on air and spray droplet interactions in a spray chamber, Advances in Mechanical Engineering, 11, 5, 2019. Crossref

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