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Atomization and Sprays

Publicou 12 edições por ano

ISSN Imprimir: 1044-5110

ISSN On-line: 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 HIGH INJECTION PRESSURES AND AMBIENT GAS PROPERTIES OVER THE MACROSCOPIC CHARACTERISTICS OF THE DIESEL SPRAY ON MULTI-HOLE NOZZLES

Volume 28, Edição 12, 2018, pp. 1145-1160
DOI: 10.1615/AtomizSpr.2019029651
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RESUMO

In this work, the effect of high injection pressures and ambient gas properties on diesel spray penetration and spreading angle are studied. To this end a multi-hole piezoelectric injector was used, and MIE-scattering optical technique to visualize the spray. Injection pressures up to 270 MPa were used throughout the experiments. Additionally, the spray behavior going from subsonic to supersonic state was analyzed by controlling the ambient gas speed of sound, promoting in this way supersonic jets. For this purpose, measurements were done using three different ambient gases (SF6, CO2, and N2) at isothermal conditions. The results showed that sprays near transonic or in supersonic state had a higher penetration rate than those in subsonic state. Furthermore, among the sprays near transonic or in supersonic state, those with higher Mach number had faster penetration. Differently, within the sprays at subsonic state, no significant variations in spray penetration rate were found, regardless of the difference in the Mach number. Shock waves appearances were pointed out as a possible explanation for the spray penetration variations observed. Finally, a statistical analysis is presented for the spray penetration under isothermal conditions and for each ambient gas.

CITADO POR
  1. Molina Santiago, García Antonio, Monsalve-Serrano Javier, Villalta David, Effects of fuel injection parameters on premixed charge compression ignition combustion and emission characteristics in a medium-duty compression ignition diesel engine, International Journal of Engine Research, 22, 2, 2021. Crossref

  2. Pal Manas Kumar, Effect of ambient fuel vapour concentration on the liquid length and air-fuel mixing of an evaporating spray, Fuel, 256, 2019. Crossref

  3. Payri Raul, Salvador Francisco Javier, Gimeno Jaime, Montiel Tomas, Aging of a Multi-Hole Diesel Injector and Its Effect on the Rate of Injection, SAE Technical Paper Series, 1, 2020. Crossref

  4. Payri Raul, Gimeno Jaime, Carreres Marcos, Montiel Tomas, Understanding the effect of inter-jet spacing on lift-off length and ignition delay, Combustion and Flame, 230, 2021. Crossref

  5. Peraza Jesús E., Salvador Francisco J., Gimeno Jaime, Ruiz Santiago, ECN Spray D visualization of the spray interaction with a transparent wall under engine-like conditions. Part I: Non-reactive impinging spray, Fuel, 307, 2022. Crossref

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