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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

Indexed in

SENSITIVITY OF PULSATING ORGANIC GEL POLYDISPERSE SPRAY DIFFUSION FLAMES TO EVAPORATION FREQUENCY DROPLET-SIZE DEPENDENCY

Volumen 19, Ausgabe 6, 2009, pp. 583-595
DOI: 10.1615/AtomizSpr.v19.i6.60
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ABSTRAKT

There is recent experimental evidence that organic gellant-based fuel droplets, under appropriate ambient thermal conditions, evaporate and burn in a pulsating manner. This unusual behavior is incorporated phenomenologically in a model of a two-dimensional polydisperse gel fuel spray flame. In keeping with the observations the frequency of oscillatory evaporation/burning is assigned a droplet-size dependence, rather than a single average value for all droplets. An analytical/numerical solution of the governing equations is utilized to examine the way in which the frequencies of oscillatory evaporation influence the combustion field for different initial polydisperse droplet size distributions. It is shown that the droplet-size-dependent frequency of evaporation of the burning gel droplets can have a strong impact on the thermal field downstream of the homogeneous spray diffusion flame front. Nevertheless, the greater the reduction in the oscillatory evaporation frequency with increasing droplet size, the more the characteristics of the gel spray flames resemble those of a liquid spray flame. Hot spots of individual (or clusters of) burning droplets can be created downstream and, under certain operating conditions, can lead to higher temperatures than experienced in the main homogeneous flame. This can be extremely important in realistic combustion settings in which hot spots in undesirable regions can damage the structural integrity of the chamber. These effects point to the fact that despite the attractive safety features of gel fuel sprays, it is crucial that careful control of the operating conditions must be exercised in order not to detract from attaining the desired combustion performance.

REFERENZIERT VON
  1. Matsibeker Evgeny, Natan Benveniste, Numerical Solution of the Flowfield in an Aluminized Gel Fuel Ramjet, 49th AIAA/ASME/SAE/ASEE Joint Propulsion Conference, 2013. Crossref

  2. Padwal Manisha B., Mishra D. P., Experimental Characterization of Gelled Jet A1 Spray Flames, Flow, Turbulence and Combustion, 97, 1, 2016. Crossref

  3. Greenberg JB, Kagan LS, Sivashinsky GI, A numerical study of the propagation of organic gellant-based fuel-rich premixed spray flames, International Journal of Spray and Combustion Dynamics, 8, 3, 2016. Crossref

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