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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

Indexed in

NEAR-NOZZLE CHARACTERISTICS OF A TRANSIENT FUEL SPRAY

Volume 5, Edição 1, 1995, pp. 107-121
DOI: 10.1615/AtomizSpr.v5.i1.60
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RESUMO

The near-nozzle characteristics of a transient fuel spray were investigated via the measurement of drop sizes and velocities, and microphotographs of the near-nozzle region for a range of gas-to-liquid density ratios. In addition, a steady-state single-phase hydrodynamic simulation of the internal nozzle flow was performed to observe the effects of needle position on the internal flow.
Measurement of droplet size and velocity near the nozzle on the edge of the spray showed that the average droplet velocity peaked during needle opening and needle closing, and changed throughout the spray event. Drop sizes tended to be small on the spray edge. Microphotographs of the near-nozzle region showed that the spray was most widely dispersed immediately after injection begins, narrowing rapidly to a constant spray angle. The same behavior was observed even for injection into near-vacuum conditions. However, once the spray was established, aerodynamic interactions were necessary for near-nozzle atomization.
The single-phase internal flow calculation showed that the magnitude of the turbulence intensity in the fluid was related to needle position. The position for cavitation, as indicated by regions within the nozzle tip with pressures less than the saturation pressure of the liquid, did not seem to be related to needle position, however.

CITADO POR
  1. Yeh Chun-Lang, Turbulent flow investigation inside and outside plain-orifice atomizers with rounded orifice inlets, Heat and Mass Transfer, 41, 9, 2005. Crossref

  2. Yeh Chun-Lang, Turbulent flow simulation of liquid jet emanating from pressure-swirl atomizer, Heat and Mass Transfer, 44, 3, 2007. Crossref

  3. YEH Chun-Lang, Numerical Investigation of Liquid Jet Emanating from Plain-Orifice Atomizers with Chamfered or Rounded Orifice Inlets, JSME International Journal Series B, 47, 1, 2004. Crossref

  4. Yeh Chun-Lang, Numerical Study of Inlet and Geometry Effects on Discharge Coefficients for Liquid Jet Emanating From a Plain-Orifice Atomizer, Journal of Mechanics, 18, 3, 2002. Crossref

  5. Hung Calvin C., Martin Jay K., Koo Ja-Ye, Injection Pressure Effects Upon Droplet Behavior in Transient Diesel Sprays, SAE Technical Paper Series, 1, 1997. Crossref

  6. Koo Ja Ye, Hong Seung Tae, Shakal Joseph S., Goto Shinichi, Influence of Fuel Injector Nozzle Geometry on Internal and External Flow Characteristics, SAE Technical Paper Series, 1, 1997. Crossref

  7. Koo Ja Ye, The effects of injector nozzle geometry and operating pressure conditions on the transient fuel spray behavior, KSME International Journal, 17, 4, 2003. Crossref

  8. Dong PengBo, Yamauchi Jun, Nishida Keiya, Ogata Youichi, Hole Geometrical Effect on Internal Flow, Fuel Atomization and Spray Evaporation of Multi-Hole Nozzle for Diesel Engine, SAE Technical Paper Series, 1, 2017. Crossref

  9. Allocca Luigi, Vaglieco Bianca Maria, Montanaro Alessandro, Mancaruso Ezio, Ciaravino Claudio, Avolio Giovanni, Investigation of Diesel Injector Nozzle Flow Number Impact on Spray Formation and Combustion Evolution by Optical Diagnostics , SAE Technical Paper Series, 1, 2012. Crossref

  10. Montanaro Alessandro, Allocca Luigi, Impact of the Nozzle Coking on Spray Formation for Diesel Injectors, SAE Technical Paper Series, 1, 2013. Crossref

  11. Yeh Chun-Lang, Numerical Simulation of a Turbulent Liquid Jet Emanating from a Plain-Orifice Atomizer and a Pressure-Swirl Atomizer, Numerical Heat Transfer, Part A: Applications, 51, 12, 2007. Crossref

  12. Dong PengBo, Internal Flow and Spray Dynamics of Multi-Hole Nozzle, in Droplet Dynamics [Working Title], 2022. Crossref

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