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International Journal of Fluid Mechanics Research

Erscheint 6 Ausgaben pro Jahr

ISSN Druckformat: 2152-5102

ISSN Online: 2152-5110

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: 1.1 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: 1.3 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: 0.0002 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: 0.33 SJR: 0.256 SNIP: 0.49 CiteScore™:: 2.4 H-Index: 23

Indexed in

Comparison between Laser Diffraction Method and Phase Doppler Method for Spray Characteristics of Air-Assisted Swirl Atomized

Volumen 24, Ausgabe 1-3, 1997, pp. 283-293
DOI: 10.1615/InterJFluidMechRes.v24.i1-3.280
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ABSTRAKT

An air-assisted swirl atomizer has been developed for a gas turbine combustor. In the case of a conventional swirl atomizer, the droplet size increases and the spray cone angle decreases with decreasing fuel flow rate (or fuel pressure). Therefore, the swirl atomizer has a disadvantage at low flow rates. To overcome this disadvantage, a rapid air stream swirled by vanes was supplied around the swirl atomizer. This improvement has enabled the atomizer to produce finer spray (Sauter mean diameter or D32 ≤ 30 μm) and a constant wide spray cone angle (90 deg) over a wide flow rate (1:15). The spray characteristics were measured by a laser diffraction method (LDSA) and a phase Doppler method (PDPA). Results measured by the laser diffraction are sometimes different from those by the phase Doppler method. In this study, the results measured by LDSA are compared with the results measured by PDPA.
Sauter mean diameter measured by the LDSA and them converted into spatially averaged data from the PDPA is similar across the entire spray. However, Sauter mean diameter by the LDSA is a little smaller in the center region and a little larger in the outer edge region of the spray than that measured by the PDPA. For the measurement in the outer region, the difference seems to be caused mainly by the low signal-to-noise ratio of the LDSA. For the measurement in the center region, the measurement result is influenced by the supply voltage of a photon multiplier tube of the PDPA.

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