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Atomization and Sprays

Published 12 issues per year

ISSN Print: 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

GAS ENTRAINMENT CHARACTERISTICS OF DIESEL SPRAY DURING END OF INJECTION TRANSIENT

Volume 19, Issue 11, 2009, pp. 1013-1029
DOI: 10.1615/AtomizSpr.v19.i11.20
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ABSTRACT

This paper reports the effect of injection parameters such as nozzle hole diameter and injection duration on gas entrainment of diesel sprays during the end of injection transient. The entrained gas flow fields of transient diesel sprays were measured using particle image velocimetry incorporated with the laser-induced fluorescence technique. To investigate the effect of injection parameters, two nozzles with different hole diameters and two injection modes (a quasi-steady injection with long injection duration and a transient injection with short injection duration) were applied. In all test cases, in order to compensate for the decreased mass inside the spray caused by the decrease in fuel supply, gas entrainment during the end of injection transient increased compared to that of the quasi-steady state. In the case of the nozzle with a larger hole diameter, the steeper decrease in fuel mass flow rate during the end of injection transient resulted in a higher rate of entrained gas flow compared to that of the nozzle with the smaller nozzle hole diameter. However, this increasing rate of gas flow rate appears similar regardless of applied injection modes, a quasi-steady injection with long injection duration and a transient injection with short injection duration, supposedly due to the similar decreasing rate of fuel mass flow during the end of injection transient. The decrease in mass inside the spray (mass disturbance) propagated from the nozzle tip region to downstream with time. This propagation speed of mass disturbance inside the spray was affected by the penetrating rate of the spray during injection, and increased through the nozzle with a larger hole diameter and quasi-steady injection with longer injection duration.

CITED BY
  1. Zhang Ming, Xu Min, Hung David L S, Simultaneous two-phase flow measurement of spray mixing process by means of high-speed two-color PIV, Measurement Science and Technology, 25, 9, 2014. Crossref

  2. Moon Seoksu, Matsumoto Yuhei, Nishida Keiya, Gao Jian, Gas entrainment characteristics of diesel spray injected by a group-hole nozzle, Fuel, 89, 11, 2010. Crossref

  3. Nishida Keiya, Zhu Jingyu, Leng Xianyin, He Zhixia, Effects of micro-hole nozzle and ultra-high injection pressure on air entrainment, liquid penetration, flame lift-off and soot formation of diesel spray flame, International Journal of Engine Research, 18, 1-2, 2017. Crossref

  4. Wei Yijie, Li Tie, Zhou Xinyi, Zhang Zhifei, Time-resolved measurement of the near-nozzle air entrainment of high-pressure diesel spray by high-speed micro-PTV technique, Fuel, 268, 2020. Crossref

  5. Ruiz-Rodriguez Irene, Pos Radboud, Megaritis Thanos, Ganippa Lionel Christopher, Investigation of Spray Angle Measurement Techniques, IEEE Access, 7, 2019. Crossref

  6. Wei Yijie, Li Tie, Chen Run, Zhou Xinyi, Zhang Zhifei, Wang Xinran, Measurement and modeling of the near-nozzle ambient gas entrainment of high-pressure diesel sprays, Fuel, 310, 2022. Crossref

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