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Atomization and Sprays

Erscheint 12 Ausgaben pro Jahr

ISSN Druckformat: 1044-5110

ISSN Online: 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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EXPERIMENTAL CHARACTERIZATION OF AN INTERMITTENT GASOLINE SPRAY IMPINGING UNDER CROSS-FLOW CONDITIONS

Volumen 15, Ausgabe 2, 2005, pp. 201-222
DOI: 10.1615/AtomizSpr.v15.i2.60
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ABSTRAKT

This article reports an experimental study on an intermittent gasoline spray impinging onto a flat surface in the presence of a cross flow. The experiments include detailed phase Doppler anemometry (PDA) measurements of droplet size, velocity, and volume flux to quantify the time-dependent fluid dynamic interactions between the spray and the cross flow. The analysis is performed in terms of the expected influence on the outcome of impact.
Interposition of the wall decreases the penetration rate of the spray, and therefore the energy available at impact is smaller than would be expected from the analysis of the free spray. However, the main effect of the wall is due to the formation of a three-dimensional time-varying vortical structure in the vicinity of the wall, which entrains reatomized droplets to reimpinge with smaller Reynolds numbers, thus contributing to the formation of the wall liquid film. Although spray/wall interaction is altered due to deviation of the impinging spray by the cross flow, the main effect is due to drag of small droplets from the vortical structure, thus reducing the number of droplets predicted to stick at the wall. However, it is suggested that the cross flow enhances the interaction between crowns at the target surface and impinging droplets, in such a way that the volume flux of small droplets flying way from the surface may overcome the volume flux of impinging droplets.

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