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Atomization and Sprays

Publicado 12 números por año

ISSN Imprimir: 1044-5110

ISSN En Línea: 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

GASOLINE SPRAYS IN UNIFORM CROSSFLOW

Volumen 17, Edición 7, 2007, pp. 621-640
DOI: 10.1615/AtomizSpr.v17.i7.30
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SINOPSIS

Sprays from a gasoline direct injector into a chamber at atmospheric pressure with an injection duration of 3.2 ms and a uniform 11 m/s crossflow have been visualized by a high-resolution CCD camera, and the velocity and droplet characteristics measured with a phase Doppler anemometer. The images show that smaller droplets were displaced in the direction of the crossflow by 5.6, 6.9, and 7.6 mm for injection pressures of 30, 50, and 80 bar, respectively, 1.5 ms after the start of injection. These values increased with time. The crossflow decreased the penetration on the incident side of the cone spray and caused a small increase on the lee side. The local measurements confirm the displacement of droplets of diameter and velocity less than around 27 μm and 22 m/s, respectively, by the crossflow at an injection pressure of 30 bar and the corresponding values at 80 bar were 20 μm and 25 m/s. The radial distributions of droplet mean velocity showed a clear shift of mean velocity profile on the order of 15 mm in the direction of crossflow for 30 and 80 bar injection pressures at axial locations 60 and 80 mm, respectively. The results are directly relevant to gasoline engines with combinations of swirl and tumble and early injection. The spray will be shorter with the higher cylinder pressures of late injection and the ratio of cross-flow to spray momentum will be higher so that the effects will be larger.

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