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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

SPRAY CHARACTERISTICS OF A GROUP-HOLE NOZZLE FOR DIRECT-INJECTION DIESEL ENGINES

Volume 16, Numéro 1, 2006, pp. 35-50
DOI: 10.1615/AtomizSpr.v16.i1.30
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RÉSUMÉ

The reduction of the orifice diameter of a nozzle is advantageous to fuel atomization in a direct-injection diesel engine. However, diameter reduction is usually accompanied by a decrease in spray-tip penetration, worsening fuel spatial distribution and fuel-air mixing. In this article, a group-hole nozzle concept is proposed to solve the problem resulting from minimization of the orifice diameter. Compared to the conventional multihole nozzle, a group-hole nozzle has several groups of orifices; each group consists of two micro-orifices separated by a small spatial interval, with or without a small angle. For examining the characteristics of the spray injected by the group-hole nozzle, the ultraviolet-visible laser absorption-scattering (LAS) imaging technique was adopted to determine distributions of vapor concentration and droplet density, as well as other spray characteristics, such as spray angle and penetration of both vapor and liquid phase. The experimental results on the spray characteristics (injected into a high-temperature and high-pressure nitrogen atmosphere in a constant volume vessel by a common rail injection system) have shown that the group-hole nozzle spray has a smaller mean drop size and an equivalent tip penetration compared to a conventional single-hole nozzle with the same total section area of injection hole(s). The fuel-air mixture formation characteristics of the group-hole nozzles were also discussed, taking into consideration the analysis based on the LAS measurement in this work.

CITÉ PAR
  1. Gao J, Matsumoto Y, Namba M, Nishida K, An investigation of mixture formation and in-cylinder combustion processes in direct injection diesel engines using group-hole nozzles, International Journal of Engine Research, 10, 1, 2009. Crossref

  2. Gao Jian, Park Sung Wook, Wang Yue, Reitz Rolf D., Moon Seoksu, Nishida Keiya, Simulation and analysis of group-hole nozzle sprays using a gas jet superposition model, Fuel, 89, 12, 2010. Crossref

  3. Park Sungwook, Reitz Rolf D., Kim Junghwan, Combustion and emission characteristics of converging group-hole nozzle under lean engine operating conditions, Fuel, 90, 11, 2011. Crossref

  4. Nishida Keiya, Tian Jiangping, Sumoto Yasuki, Long Wuqiang, Sato Kiyotaka, Yamakawa Masahisa, An experimental and numerical study on sprays injected from two-hole nozzles for DISI engines, Fuel, 88, 9, 2009. Crossref

  5. Lahane Subhash, Subramanian K.A., Impact of nozzle holes configuration on fuel spray, wall impingement and NOx emission of a diesel engine for biodiesel–diesel blend (B20), Applied Thermal Engineering, 64, 1-2, 2014. Crossref

  6. Pawlowski Adam, Kneer Reinhold, Lippert Andreas M., Parrish Scott E., Investigation of the Interaction of Sprays from Clustered Orifices under Ambient Conditions Relevant for Diesel Engines, SAE International Journal of Engines, 1, 1, 2008. Crossref

  7. Gao Jian, Matsumoto Yuhei, Nishida Keiya, Effects of Group-hole Nozzle Specifications on Fuel Atomization and Evaporation of Direct Injection Diesel Sprays, SAE Technical Paper Series, 1, 2007. Crossref

  8. Gao Jian, Matsumoto Yuhei, Namba Makoto, Nishida Keiya, Group-Hole Nozzle Effects on Mixture Formation and In-cylinder Combustion Processes in Direct-Injection Diesel Engines, SAE Technical Paper Series, 1, 2007. Crossref

  9. Dong Pengbo, Nishida Keiya, Ogata Youichi, Characterization of multi-hole nozzle sprays and internal flow for different nozzle hole lengths in direct-injection diesel engines, Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 231, 4, 2017. Crossref

  10. Sphicas Panos, Pickett Lyle M, Skeen Scott A, Frank Jonathan H, Inter-plume aerodynamics for gasoline spray collapse, International Journal of Engine Research, 19, 10, 2018. Crossref

  11. WAKIMOTO Tatsuro, NISHIDA Kensuke, KATOH Kenji, Promotion of Perforation in a Radial Liquid Sheet by a Hot/Cool Air Flow(Fluids Engineering), Transactions of the Japan Society of Mechanical Engineers Series B, 75, 750, 2009. Crossref

  12. Greenberg J. B., Interacting Sprays, in Handbook of Atomization and Sprays, 2011. Crossref

  13. Lou Diming, Tang Yuanzhi, Wang Chengguan, Fang Liang, Zhang Yunhua, Study of Diesel Spray Impinging Ignition and Combustion Characteristics Under Variable Ambient Densities Based on the Visualization Experiment, Journal of Energy Resources Technology, 144, 10, 2022. Crossref

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