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Atomization and Sprays

Publication de 12  numéros par an

ISSN Imprimer: 1044-5110

ISSN En ligne: 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

AN INVESTIGATION ON THE BREAKUP OF UNDERWATER BUOYANT OIL JETS: COMPUTATIONAL SIMULATIONS AND EXPERIMENTS

Volume 23, Numéro 11, 2013, pp. 981-1000
DOI: 10.1615/AtomizSpr.2013007484
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RÉSUMÉ

We present experimental and computational results on the breakup of underwater buoyant oil jets and plumes at a wide range of Reynolds, Weber, and Richardson numbers and viscosity ratios. The results show three main jet breakup regimes: atomization, skirt-type, and pinch-off. The threshold Weber number for the atomization regime is around 100, which varies slightly with the jet Eotvos number. Furthermore, it is demonstrated that the correlation proposed by Masutani and Adams as the boundary for the atomization regime applies to our broader data set too. The experimental and computational results both suggest that in a buoyancy-driven jet breakup occurs only when the jet is accelerated to a point where the local Richardson number, defined based on properties at breakup, becomes less than 0.4, in which case the local Weber number is above 10. The computational results reveal the mechanisms leading to formation of small droplets around the perimeter of energetic jets and umbrella-shaped jet separations at less energetic cases. The time-averaged lateral expansion of the simulated jets, representing four different conditions, is presented as a function of the height along the jet. The computational results were obtained by using a GPU-accelerated MPI parallel two-phase flow solver, which provides acceleration factors between 3 to 6, compared to running on CPUs only.

CITÉ PAR
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