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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

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ANALYSIS OF SIZE-CLASSIFIED SPRAY STRUCTURE AND ATOMIZATION MECHANISM FOR A GASOLINE DIRECT INJECTOR

巻 14, 発行 6, 2004, 18 pages
DOI: 10.1615/AtomizSpr.v14.i6.40
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要約

In gasoline direct-injection (GDI) engines, atomized spray is desired to achieve efficient mixture formation needed for good engine performance because the injection process leaves little time for the evaporation of fuels. Therefore, a substantial' understanding of global spray structure and quantitative characteristics of sprays are decisive technology to optimize combustion systems of GDI engines.
In this study, the spray characteristics and atomization mechanism of the high-pressure swirl-type GDI injector were analyzed using a phase Doppler anemometer (PDA) system, and the different breakup mechanisms controlling the droplets with various sizes were investigated. In addition, the measured droplet size data were compared with Nukiyama-Tanasawa and Rosin-Rammler distribution functions. From experimental results, the detailed spray structure and factors influencing the atomization mechanism of fuel droplets were investigated with the classification of droplet size. The results also revealed that the Nukiyama-Tanasawa distribution function was found to overestimate the population of small drops and Rosin-Rammler function overestimated the population of large drops.

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