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雾化与喷雾

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ISSN 打印: 1044-5110

ISSN 在线: 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

DEVELOPMENT AND VALIDATION OF A FLASH BOILING MODEL FOR SINGLE-COMPONENT FUEL DROPLETS

卷 27, 册 11, 2017, pp. 963-997
DOI: 10.1615/AtomizSpr.2017020237
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摘要

In a series of flash boiling submodels in the present work, droplet external surface flashing, bubble internal vaporization, and droplet breakup outcome submodels are proposed and adopted. In the droplet external surface flashing submodel, an analytical solution to the transient temperature distribution of the inside of a flash boiling droplet has been derived, and the external surface fuel flashing rate can be determined from the thermal conduction energy flux from the inside of the droplet as well as the thermal convection energy flux at the interface between the droplet surface and the surrounding gas. In the bubble internal vaporization submodel, both aerodynamic pressure difference driven bubble growth and heat transfer between the liquid and vapor bubble are considered. The Rayleigh–Plesset equation is used for the aerodynamic force to control the growth rate of a cavitation bubble. In the droplet breakup outcome submodel, the sizes and velocities of resulting droplets are derived, and the disruption energy has been analytically derived. Using the present flash boiling model, the flash boiling of a single-component single droplet was simulated, showing qualitatively correct droplet-bubble related parameters. The simulated bubble growth in a water droplet has been well validated with available experimental data. A single-hole flash boiling iso-octane spray was simulated using different approaches. Comparison results show that the present flash boiling model has a much better capability to capture the flash boiling characteristics than a normal evaporation model. Another single-hole flash boiling iso-octane spray was simulated and compared with experimental data, showing that both the spray shape and the penetration match the experimental data very well. Finally, the present model was successfully applied in capturing the flash boiling phenomenon in a practical gasoline engine.

对本文的引用
  1. Wu Jian, Du Jiakun, Chen Hong, Li Yuhuai, Zhan Wenfeng, Wu Guangquan, Ye Lin, Experimental study on flash-boiling spray structure of multi-hole gasoline direct injection injector in a constant volume chamber, International Journal of Spray and Combustion Dynamics, 12, 2020. Crossref

  2. Saha Avijit, Grenga Temistocle, Deshmukh Abhishek Y., Hinrichs Jörn, Bode Mathis, Pitsch Heinz, Numerical modeling of single droplet flash boiling behavior of e-fuels considering internal and external vaporization, Fuel, 308, 2022. Crossref

  3. Liu Zihe, Jia Ming, Xi Xi, Liu Hong, Yi Ping, Simulation of the evaporation/boiling transition for the vaporization of a bi-component droplet under wide-temperature environments, International Journal of Heat and Mass Transfer, 193, 2022. Crossref

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