Liquid jets in cross air flows are widely used and play an important role in propulsion systems, such as ramjet combustors. In this paper, experiments were carried out to investigate the properties of the primary breakup of liquid jets in subsonic transverse airflows at low Weber number. The test ranges included crossflow Weber numbers of 0.5–6.7, liquid-to-gas momentum ratios of 3–120, and Ohnesorge number of 0.0086. Four different injectors with diameter 0.4mm, 0.5mm, 0.6mm and 1mm have been used. A high speed camera was used to observe the jet column breakup process. Results show that the surface wavelength decreases not only with the increase of the gas Weber number but also with the increase of the momentum ratio. The breakup length decreases with the increase of the gas Weber number, in addition to its increase with the increase of the momentum ratio. The droplet diameter decreases with the increase of both the gas Weber number and momentum ratio, although the gas Weber number will dominate the breakup process. The surface wavelength, breakup length, and droplet diameter were also analyzed with to obtain semi-theoretical correlations.
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ASME Turbo Expo 2013: Turbine Technical Conference and Exposition
June 3–7, 2013
San Antonio, Texas, USA
Conference Sponsors:
- International Gas Turbine Institute
ISBN:
978-0-7918-5510-2
PROCEEDINGS PAPER
On the Breakup Process of Round Liquid Jets in Gaseous Crossflows at Low Weber Number Available to Purchase
Shao-lin Wang,
Shao-lin Wang
Beihang University, Beijing, China
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Zhi-lin Liu,
Zhi-lin Liu
Beihang University, Beijing, China
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Lei Liu
Lei Liu
Beihang University, Beijing, China
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Shao-lin Wang
Beihang University, Beijing, China
Yong Huang
Beihang University, Beijing, China
Fang Wang
Beihang University, Beijing, China
Zhi-lin Liu
Beihang University, Beijing, China
Lei Liu
Beihang University, Beijing, China
Paper No:
GT2013-94696, V01AT04A050; 6 pages
Published Online:
November 14, 2013
Citation
Wang, S, Huang, Y, Wang, F, Liu, Z, & Liu, L. "On the Breakup Process of Round Liquid Jets in Gaseous Crossflows at Low Weber Number." Proceedings of the ASME Turbo Expo 2013: Turbine Technical Conference and Exposition. Volume 1A: Combustion, Fuels and Emissions. San Antonio, Texas, USA. June 3–7, 2013. V01AT04A050. ASME. https://doi.org/10.1115/GT2013-94696
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