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Lookup NU author(s): Zhichao Zhang, Dr Yiji LuORCiD, Professor Tony Roskilly
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND).
© 2019 Elsevier LtdThe formation and evolution of the initial spray structure of diesel fuel in the near-nozzle region under different injection and ambient pressures were studied. A visualisation experiment study on diesel fuel using long-distance microscopy and nanosecond-pulse flashlight was performed. Four types of spray tip structure were identified and named as ‘needle’, ‘bubble’, ‘mushroom’ and ‘umbrella’. The obtained high-resolution images revealed that both injection pressure and ambient pressure had a significant influence on the evolution of the spray tip structure. The measurement of the spray penetration and spray angle showed that the increase of injection pressure enhanced spray dispersion while the increase of ambient pressure exhibited an opposite effect. In order to provide a better understanding on the formation mechanism, a numerical study based on large eddy simulation (LES) and volume of fluid (VOF) interface capturing technique was conducted.
Author(s): Chen L, Li G, Huang D, Zhang Z, Lu Y, Yu X, Roskilly AP
Publication type: Article
Publication status: Published
Journal: Energy
Year: 2019
Volume: 186
Print publication date: 01/11/2019
Online publication date: 06/08/2019
Acceptance date: 01/08/2019
Date deposited: 22/10/2019
ISSN (print): 0360-5442
ISSN (electronic): 1873-6785
Publisher: Elsevier Ltd
URL: https://doi.org/10.1016/j.energy.2019.115867
DOI: 10.1016/j.energy.2019.115867
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