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Atomization and Sprays

年間 12 号発行

ISSN 印刷: 1044-5110

ISSN オンライン: 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

FLOW PATTERN OBSERVATIONS OF GASOLINE DISSOLVED CO2 INSIDE AN INJECTOR

巻 16, 発行 6, 2006, pp. 615-626
DOI: 10.1615/AtomizSpr.v16.i6.20
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要約

Spray formation by fuel-dissolved gas atomization is studied. The geometry of the injector, which consists of two orifices separated by an expansion chamber, was optimized to produce spray with minimal Sauter mean diameter (SMD). Special attention is drawn to the flow pattern inside the expansion chamber and on its significant impact on the resultant spray quality. Three possible characteristic regimes were identified: all liquid flow, stratified two-phase flow, and well-mixed bubbly flow. The latter regime results in the lowest SMD sprays. The necessary operation conditions and injector geometry in order to reach the well-mixed bubbly flow regime were mapped. A possible explanation for the optimal value of about 0.7 for the orifice diameter ratio has been proposed. When optimizing an injector of this type, it is anticipated that the pressure of the expansion chamber plays an important role. The pressure is primarily determined by the orifice diameter ratio. A lower pressure enhances both the nucleation rate at the inlet orifice and the bubble growth rate inside the chamber. Conversely, a higher pressure enhances the discharge velocity and the bubble growth rate downstream of the discharge orifice; both result in a better secondary droplet breakup. In an attempt to find an empirical criterion for the optimal orifice diameter ratio, we examined various combinations of the relevant parameters. The product of the void fraction and the pressure drop across the discharge orifice has been found fairly useful over the entire range of the present experimental conditions.

によって引用された
  1. Sher Eran, Bar-Kohany Tali, Rashkovan Alexander, Flash-boiling atomization, Progress in Energy and Combustion Science, 34, 4, 2008. Crossref

  2. Rahman M.A., Balzan M., Heidrick T., Fleck B.A., Effects of the gas phase molecular weight and bubble size on effervescent atomization, International Journal of Multiphase Flow, 38, 1, 2012. Crossref

  3. Ju Dehao, Shrimpton John, Bowdrey Moira, Hearn Alex, Effect of expansion chamber geometry on atomization and spray dispersion characters of a flashing mixture containing inerts. Part I. Numerical predictions and dual laser measurements, International Journal of Pharmaceutics, 432, 1-2, 2012. Crossref

  4. Ju Dehao, Fang Junhua, Zhang Tingting, Qiao Xinqi, Xiao Jin, Huang Zhen, High-speed shadow imaging in internal flow pattern and macroscopic characteristics of a R134a flash-boiling spray discharged through a vertical twin-orifice atomizer, International Journal of Multiphase Flow, 75, 2015. Crossref

  5. Ju Dehao, Huang Zhong, Jia Xiaoxu, Qiao Xinqi, Xiao Jin, Huang Zhen, Macroscopic characteristics and internal flow pattern of dimethyl ether flash-boiling spray discharged through a vertical twin-orifice injector, Energy, 114, 2016. Crossref

  6. Wang Xin-Sheng, Chen Bin, Zhou Zhi-Fu, Atomization and surface heat transfer characteristics of cryogen spray cooling with expansion-chambered nozzles, International Journal of Heat and Mass Transfer, 121, 2018. Crossref

  7. Moshkovich Yahav, Levy Yeshayahou, Sher Eran, Theoretical criteria for homogeneous flash boiling atomization, Chemical Engineering Science, 206, 2019. Crossref

  8. Habchi Chaouki, Real-fluid phase transition in cavitation modeling considering dissolved non-condensable gas, Physics of Fluids, 32, 3, 2020. Crossref

  9. Moshkovich Y., Levy Y., Sher E., Experimental observations of the transition between heterogeneous to homogeneous nucleation regimes in flash-boiling atomization, International Journal of Multiphase Flow, 134, 2021. Crossref

  10. Miao Junjie, Fan Yuxin, Wu Weiqiu, Effects of nozzle configuration on flash boiling fuel sprays of twin-orifice nozzle with aviation kerosene, International Journal of Heat and Mass Transfer, 174, 2021. Crossref

  11. Miao Junjie, Fan Yuxin, Wu Weiqiu, Characteristics of flash boiling spray of aviation kerosene in the twin-orifice nozzle, Fuel, 297, 2021. Crossref

  12. Shariatnia Shadi, Asadi Amir, Jarrahbashi Dorrin, Experimental analysis of supercritical-assisted atomization, Physics of Fluids, 33, 1, 2021. Crossref

  13. Trucillo Paolo, Campardelli Roberta, De Marco Iolanda, Experimental Study of Water Jet Break-Up in and Supercritical Carbon Dioxide, Industrial & Engineering Chemistry Research, 58, 49, 2019. Crossref

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