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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

DEVELOPMENT OF AN AIR-BLAST ATOMIZER FOR INDEPENDENT CONTROL OF DROPLET SIZE AND SPRAY DENSITY

卷 14, 册 3, 2004, 24 pages
DOI: 10.1615/AtomizSpr.v14.i3.40
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摘要

The atomizer described is a novel twin-fluid design that allows independent control of mean droplet size and mean spray density. Designed to handle unpressurized fluids at low flow rates, the prefilming double-annular air-blast atomizer (PFDAAA) distributes fuel in a liquid film over a hollow, tapered cylindrical centerbody. Two independently controlled atomizing gas streams shear the inner and outer surfaces of the cylindrical fluid film at the injector tip, resulting in continuously variable atomization. Data taken during a series of cold-flow experiments include both mean droplet size and spray density measures. The data demonstrate that controlling the relative flow rates of the two atomizing gas streams produces droplet dispersions whose mean droplet size and spray density vary independently of each other. Measured values of Sauter mean diameter (SMD) for isopropyl alcohol sprays range from 250 to 3100 μm, and values of normalized interdroplet spacing range from 0.8 to 3.6 mean droplet diameters. When presented collectively, the mean droplet size and spray density data form a performance map indicating the operating range of the PFDAAA for the conditions tested. Parametrically variable sprays such as those generated by the PFDAAA constitute a previously unavailable experimental platform for spray combustion research. Investigations using laser diagnostics to probe a controlled, variable spray could provide insights into the physicochemical processes within a spray that ultimately affect combustion efficiency and pollutant formation.

对本文的引用
  1. Batarseh Feras Z., Gnirß Markus, Roisman Ilia V., Tropea Cameron, Fluctuations of a spray generated by an airblast atomizer, Experiments in Fluids, 46, 6, 2009. Crossref

  2. Huang Ying, Yang Vigor, Dynamics and stability of lean-premixed swirl-stabilized combustion, Progress in Energy and Combustion Science, 35, 4, 2009. Crossref

  3. Fisher Brian T., Weismiller Michael R., Tuttle Steven G., Hinnant Katherine M., Effects of Fluid Properties on Spray Characteristics of a Flow-Blurring Atomizer, Journal of Engineering for Gas Turbines and Power, 140, 4, 2018. Crossref

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