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International Journal of Fluid Mechanics Research

Published 6 issues per year

ISSN Print: 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

Droplet Size Measurements in a Diesel Fuel Spray Using a Planer Laser Induced Fluorescence Method

Volume 24, Issue 4-6, 1997, pp. 841-850
DOI: 10.1615/InterJFluidMechRes.v24.i4-6.390
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ABSTRACT

This paper presents new technique for the measurement of particle size of dense fuel spray. Much studies had been focused on particle size distribution. And various methods were tried to observe it, for example there were droplet collecting method, molten wax method, direct photography method, fraunhofer diffraction method, image analysis method and recently, the phase Doppler anemometer (PDA) method. But above these methods, problems such as injection pressure limitation and the existence of multiple scattering inside the dense spray remain. In this study, the planer laser induced fluorescence (PLIF) technique was applied to measure the particle mean size and particle size distribution of the diesel fuel spray. The fuel used was n-tridecane mixed with 1 wt% N, N, N', N'-Tetramethylparaphenylenediamine (TMPD). Light source to excite TMPD in the fuel was secondary harmonics of a ruby laser-light sheet. Greatly magnified image of fluorescence from TMPD was taken by a 35 mm still camera with magnified optics, and mean particle size and particle size distribution of the fuel spray were obtained by processing the images of fuel particles magnificently printed on a paper. First, the accuracy of this method was confirmed by comparing with PDA's results for fuel spray particles of an air-assisted gasoline injector. Then, for the diesel spray, the effects of injection velocity, ambient pressure on fuel particle mean size and size distribution were investigated in a high pressure vessel at room temperature. As the results, small size particles increase in the case of higher injection velocity in which particles seem to atomize more actively. At higher ambient pressure condition, mean particle size increases.

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