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Atomization and Sprays

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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

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EFFECT OF GAS-LIQUID AXIAL VELOCITY CONTINUITY ON THE AXISYMMETRIC AND ASYMMETRIC INSTABILITIES OF A VISCOELASTIC LIQUID CORE IN A SWIRLING GASEOUS CO-FLOW

Volumen 26, Ausgabe 1, 2016, pp. 1-21
DOI: 10.1615/AtomizSpr.2015012153
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ABSTRAKT

When liquid jets eject into a co-flowing gas stream with unequal velocities, the axial velocity discontinuity between the two phases may cause jet instability; it then moves into the surface-driven instability with the gas-liquid axial velocity continuity. This paper expands the issue to include instability of a three-dimensional viscoelastic liquid jet subjected to a swirling gas. In the solid-body-rotation gas velocity profile, the dispersion relationship was obtained by conducting a linear instability analysis in the temporal mode. Results showed that a viscoelastic liquid jet can behave with greater instability than its Newtonian counterpart. Liquid elasticity is a destabilizing factor, while liquid viscosity and deformation retardation time enhance the stability of viscoelastic jets. In an axisymmetric jet, the liquid Weber number has no influence on jet instability with gas-liquid axial velocity continuity; however, the liquid Weber number makes the jet more unstable when a gas-liquid axial velocity discontinuity exists. Gas density stabilizes the jet while destabilizing it in situations both with and without axial velocity continuity, respectively. Further investigation indicated that gas-liquid axial velocity discontinuity can enhance the effects of flow parameters on jet instability. With large swirl strength, the asymmetric mode can prevail over its axisymmetric counterpart and dominate jet instability. The solid-body-rotation profile has a more significant effect on instability of viscoelastic liquid jet with gas-liquid axial velocity discontinuity than a free-vortex profile; however, these two velocity profiles have an identical effect on velocity continuity.

REFERENZIERT VON
  1. Deng Xiang-Dong, Jia Bo-Qi, Cui Xiao, Wang Ning-Fei, Shi Bao-Lu, Temporal Instability of Liquid Jet in Swirling Gas with Axial Velocity Oscillation, AIAA Journal, 60, 6, 2022. Crossref

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