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Atomization and Sprays

年間 12 号発行

ISSN 印刷: 1044-5110

ISSN オンライン: 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

INFLUENCE OF INERT SPRAYS ON EXTINCTION OF PREMIXED FLAMES PROPAGATING IN A DUCT WITH VARYING CROSS-SECTIONAL AREA

巻 15, 発行 5, 2005, pp. 545-566
DOI: 10.1615/AtomizSpr.v15.i5.40
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要約

The extinction of a premixed flame propagating in a duct with varying cross-sectional area under the influences of flame stretch, preferential diffusion, and water sprays is analyzed using activation energy asymptotics. A completely prevaporized mode and a partially prevaporized mode are identified on the basis of a critical value of the initial droplet size (rc′) for completing the vaporization process at the flame. The liquid loading and droplet size of the water spray induces internal heat loss through liquid vaporization. It is found that the burning intensity of a flame with water sprays is reduced with increasing liquid loading or decreasing initial droplet size, independent of the value of Lewis number (Le). Small droplets can absorb heat from the flame more effectively than large ones. However, it is not beneficial to reduce droplet size below the critical initial droplet size. The negative (or positive) stretch weakens (or strengthens) a Le < 1 flame but intensifies (or reduces) a Le > 1 flame. A positively stretched flame with Le > 1 or a negatively stretched flame with Le < 1 can be extinguished by increasing the effect of stretch, and this behavior is characterized by a C-shaped extinction curve. For a Le < 1 flame enduring positive stretch or a Le > 1 flame experiencing negative stretch, extinction does not occur for the completely prevaporized mode. However, for the partially prevaporized mode, the S-shaped extinction curve occurs if the liquid-loading water is large enough and the droplet size is also sufficiently large. Note that extinction characterized by a C-shaped curve is dominated by flame stretch; whereas extinction, characterized by an S-shaped curve, is governed by internal heat loss.

によって引用された
  1. Liu XuanYa, Lu ShouXiang, Zhu YingChun, Liu Yi, Laminar premixed methane/air flame extinction characteristics influenced by co-flow water mists, Chinese Science Bulletin, 53, 3, 2008. Crossref

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