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雾化与喷雾

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ISSN 打印: 1044-5110

ISSN 在线: 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

STRUCTURE OF VAPORIZING PRESSURE ATOMIZED SPRAYS

卷 3, 册 3, 1993, pp. 321-364
DOI: 10.1615/AtomizSpr.v3.i3.50
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摘要

A detailed characterization of a vaporizing spray produced by a pressure atomizer is presented. The study is part of an ongoing effort to understand the behavior of sprays under a variety of conditions. The atomizer utilized is a standardized research atomizer that can be operated (without modifying the geometry of the atomizer) as either a simplex atomizer or an air-assist atomizer, with both swirling and nonswirling atomizing air, and with or without reaction. Phase Doppler interferometry, laser diffraction, and infrared extinction/ scatter are utilized in the characterization. The measurements include: (1) drop size, velocity, cross-correlations, volume flux, and concentration; (2) gas-phase velocities with and without the spray; and (3) the vapor concentration within the spray. The present data are acquired in the absence of reaction, and include temporally resolved measurements of the droplets. In the present spray, strong dependency of velocity on drop size is observed. Entrainment of surrounding air and gravitational forces lead to segregation of drops based on inertia. The result is that the modulation of the gas-phase velocities (both mean and rms) is correlated in a nontrivial way to the concentration, size, and slip velocity of the drops. The vapor concentration is saturated along the centerline of the spray, and decays in the radial direction due to the entrainment of air. The vapor concentration diffuses similarly to the gas-phase momentum. Finally, comparison of different techniques for measurement of drop size is reasonable, as is comparison of different techniques for measurement of the spray vaporization. The data presented provide a detailed set of measurements for vaporizing, pressure atomized sprays suitable for modeling challenges.

对本文的引用
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