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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

EFFECTS OF SPRAY PATTERNS ON THE MIXTURE FORMATION PROCESS IN MULTI-HOLE-TYPE DIRECT INJECTION SPARK IGNITION (DISI) GASOLINE ENGINES

巻 26, 発行 11, 2016, pp. 1151-1175
DOI: 10.1615/AtomizSpr.2015013725
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要約

The direct injection concept is a prominent issue in spark ignition engines owing to direct injection's high fuel efficiency. However, proper fuel−air mixing technology is necessary to restrict exhaust emissions. Mixture preparation requires an understanding of the complex phenomena and physics regarding direct injection spark ignition (DISI) gasoline engines. Multihole-type DISI gasoline injectors can be used to generate various spray patterns. In this study, five types of spray patterns were considered for mixture preparation simulation: reference-type, circle-type, triangle-type, T-type, and Y-type patterns. Mass flow rate and initial droplet size were assumed to be the same for each nozzle. Also, cavitation for each nozzle was considered to be equal. Numerical analysis was carried out for wide open throttle conditions with a fixed engine speed (1500 rpm). Injection timing was set to BTDC 360 degrees, BTDC 315 degrees, and BTDC 270 degrees. The spray model and motoring pressure were validated before mixture preparation analysis. The BTDC 360 degree injection case was characterized by instant vaporization, whereas the BTDC 315 degree injection case was characterized by a fuel injection−dominant case, and the BTDC 270 degree injection case was characterized by a spray−flow interaction-dominant case. T-type and Y-type spray patterns showed faster evaporation than reference-type, circle-type, and triangle-type spray patterns.

によって引用された
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