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Atomization and Sprays

Erscheint 12 Ausgaben pro Jahr

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

ABSOLUTE AND CONVECTIVE INSTABILITY OF CYLINDRICAL LIQUID JETS IN CO-FLOWING GAS STREAMS

Volumen 8, Ausgabe 1, 1998, pp. 45-62
DOI: 10.1615/AtomizSpr.v8.i1.30
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ABSTRAKT

This article reports the absolute and convective instability of a cylindrical liquid jet in a co-flowing inviscid gas stream. An efficient mesh-searching method is developed to determine the absolute instability and the critical Weber number which separates the region of absolute from that of convective instability. It is found that both gas velocity and density may increase or decrease the critical Weber number and may promote or suppress the absolute instability, depending on flow conditions, and that it is the absolute rather than the relative velocity that governs the absolute instability. For Weber numbers larger than the critical values, the instability of liquid jets becomes convective. The absolute gas and liquid velocity at low Weber numbers and the relative velocity between the liquid and gas at high Weber numbers control the spatial growth rate, and may enhance significantly jet breakup process at high gas velocities. Surface tension has both stabilizing ( for short waves ) and destabilizing ( for long waves ) effects on the convective growth rate whenever there exists velocity discontinuity across the liquid-gas interface. Otherwise, it always promotes the jet instability. The gas-to-liquid density ratio shows a completely opposite effect for equal and unequal gas and liquid velocities, while liquid viscosity always has a damping effect.

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