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Numerical investigation of the breakup mode and trajectory of liquid jet in a gaseous crossflow at elevated conditions

Published online by Cambridge University Press:  13 September 2021

Y. Zhu Open the ORCID record for Y. Zhu [Opens in a new window] ,
X. Sun ,
V. Sethi ,
P. Gauthier ,
S. Guo ,
R. Bai  and
D. Yan
Y. Zhu*
Affiliation:
AECC Shenyang Engine Research Institute Department of Combustion Shenyang China and Cranfield University School of Aerospace, Transport and Manufacturing Cranfield UK
X. Sun
Affiliation:
Cranfield University School of Aerospace, Transport and Manufacturing Cranfield UK
V. Sethi
Affiliation:
Cranfield University School of Aerospace, Transport and Manufacturing Cranfield UK
P. Gauthier
Affiliation:
Cranfield University School of Aerospace, Transport and Manufacturing Cranfield UK
S. Guo
Affiliation:
AECC Shenyang Engine Research Institute Department of Combustion Shenyang China
R. Bai
Affiliation:
AECC Shenyang Engine Research Institute Department of Combustion Shenyang China
D. Yan
Affiliation:
AECC Shenyang Engine Research Institute Department of Combustion Shenyang China
*
zhuyu0324@qq.com
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Abstract

The commercial Computational Fluid Dynamics (CFD) software STAR-CCM+ was used to simulate the flow and breakup characteristics of a Liquid Jet Injected into the gaseous Crossflow (LJIC) under real engine operating conditions. The reasonable calculation domain geometry and flow boundary conditions were obtained based on a civil aviation engine performance model similar to the Leap-1B engine which was developed using the GasTurb software and the preliminary design results of its low-emission combustor. The Volume of Fluid (VOF) model was applied to simulate the breakup feature of the near field of LJIC. The numerical method was validated and calibrated through comparison with the public test data at atmospheric conditions. The results showed that the numerical method can capture most of the jet breakup structure and predict the jet trajectory with an error not exceeding ±5%. The verified numerical method was applied to simulate the breakup of LJIC at the real engine operating condition. The breakup mode of LJIC was shown to be surface shear breakup at elevated condition. The trajectory of the liquid jet showed good agreement with Ragucci’s empirical correlation.

Keywords

Jet trajectorySimulationVOFBreakupElevated condition
Type
Research Article
Information
The Aeronautical Journal , Volume 125 , Issue 1291: The 25th ISABE Conference Special Issue – Part I , September 2021 , pp. 1519 - 1541
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Copyright
© The Author(s), 2021. Published by Cambridge University Press on behalf of Royal Aeronautical Society

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