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International Journal of Energetic Materials and Chemical Propulsion

年間 6 号発行

ISSN 印刷: 2150-766X

ISSN オンライン: 2150-7678

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: 0.7 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: 0.7 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: 0.1 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: 0.00016 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: 0.18 SJR: 0.313 SNIP: 0.6 CiteScore™:: 1.6 H-Index: 16

Indexed in

EXPERIMENTAL STUDY OF SUBCRITICAL TO SUPERCRITICAL JET MIXING

巻 8, 発行 3, 2009, pp. 237-251
DOI: 10.1615/IntJEnergeticMaterialsChemProp.v8.i3.50
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要約

Liquid jet injection into a quiescent gaseous environment has been studied experimentally and analytically covering subcritical to supercritical conditions. The focus was placed on influences the surrounding gas pressure and temperature have on the jet break-up. Subcritical, transcritical and supercritical jet break-up mechanisms were observed. Under the subcritical conditions first and second wind-induced break-up regimes were observed; the surrounding gas inertia and surface tension forces were the controlling factors in this case. Decreasing surface tension influenced the jet surface behavior under transcritical conditions: ligament formation was significantly reduced under these conditions with only occasional drop formation. Further increasing the pressure and temperature led to supercritical break-up modes. This manifested through a smoothening of the liquid-gas interface. Ligament formation was not observed under supercritical conditions; this indicated that surface tension did not play any role in the supercritical jet break-up. Despite the apparent absence of the surface tension the density gradients values observed under supercritical conditions were comparable to those observed under subcritical conditions. The experimental technique, using planar laser induced fluorescence, revealed important core jet structures undetected previously. A linear jet stability analysis was, then, performed to gain physical insight into the jet break-up mechanisms. The results showed good correlation with experimental results under subcritical mixing but failed to predict the transcritical and supercritical regimes.

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