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International Journal of Fluid Mechanics Research

Publicado 6 números por año

ISSN Imprimir: 2152-5102

ISSN En Línea: 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

Atomization of Liquids with Widely Differing Material Properties by Ultrasonic Standing-Waves

Volumen 24, Edición 4-6, 1997, pp. 556-567
DOI: 10.1615/InterJFluidMechRes.v24.i4-6.120
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SINOPSIS

Ultrasonic standing wave fields in a gaseous atmosphere, generated by two opposed, identical transducers (20 kHz) are used as standing wave atomization (USWA) to produce very fine narrow sized spherical droplets. USWA may be operated under ambient gas pressure or under gas pressures of up to 2.0 MPa (and more) thus allowing disintegration of fluids with high viscosities (synthetic resins, glass melts, suspensions) and/or high surface tensions (metal melts). The feed is led from above into the central sound pressure node of the standing wave field. Here the cylindrical liquid jet is deformed into a flat circular disk parallel to the transducer surfaces. At the rim of this disk atomization into ultrafine droplets takes place, the size distribution of which can be fitted by a log-normal distribution with (in the case of tin particles) a mean diameter of 10 μm and a geometrical standard deviation between 1.6 and 1.9. In order to gain quantitative insight into the dependence of the droplet size on the atomization conditions, a dimensional analysis was carried out, leading to two equations for the mean drop size of either metal melts or highly viscous liquids and showing significant influences of either the Weber-number or the Reynolds-number together with the ratio of the kinetic energy density of the gas flow (in the USWA field) and the feed. A description of the apparatus and of the process conditions gives an impression about the necessary hardware of this new technique which has its main claim in the disintegration of liquids with very high viscosities and/or high surface tensions and in the contamination free atomization into ultrafine spherical particles.

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