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Atomization and Sprays

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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

Indexed in

IMPROVED SEMI-EMIPIRICAL PREDICTION OF VISCOUS SPRAY CONE ANGLE FOR PRESSURE SWIRL ATOMIZERS

Volumen 27, Ausgabe 9, 2017, pp. 771-790
DOI: 10.1615/AtomizSpr.2017019727
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ABSTRAKT

Pressure swirl atomizers are widely used in many fields due to their geometrical simplicity and good atomization characteristics. However, few correlations are capable of reflecting the effects of liquid viscosity on the spray cone angles. In this paper, an improved semi-empirical correlation is derived to predict the viscous spray cone angles. The correlation accounts for the effects of boundary layer, hence effectively associates spray cone angles with the geometric parameters of atomizer and liquid viscosity. The improved semi-empirical correlation reveals that the spray cone angles decrease with the increase of the length of the swirl chamber, the length of the discharge orifice, the ratio of the radius of the swirl chamber to the radius of the discharge orifice, or the liquid viscosity. The spray cone angles decrease with the decreasing of the half-angle of the convergent duct. Then, five types of pressure swirl atomizers with different swirl chamber lengths and four types of liquids with different viscosities are used to validate the improved semi-empirical correlation proposed in this paper. It is observed in the experiments that the spray cone angles decrease with the increase of the lengths of the swirl chamber or the liquid viscosity. The spray cone angles predicted by this improved semi-empirical correlation agree better with the experimental results than all other available correlations. The prediction uncertainties of the improved semi-empirical correlation to predict the spray cone angles of pressure swirl atomizers are within ±10% for the present experimental data.

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