Simulation of Primary Film Atomization in Prefilming Air-assisted Atomizer Using Volume-of-Fluid Method

We studied fuel atomization in an air-assisted atomizer of aircraft engine with volume-of-fluid method in microgravitation approximation under the conditions closer to the ones of the operating cruise mode. The problem was looked upon in a two-dimensional axisymmetric configuration, including the si...

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Bibliographic Details
Published in:Microgravity science and technology 2020-06, Vol.32 (3), p.465-476
Main Authors: Mingalev, Stanislav, Inozemtsev, Alexander, Gomzikov, Leonid, Sipatov, Alexey, Abramchuk, Taras
Format: Article
Language:English
Subjects:
Aerospace Technology and Astronautics
Aircraft engines
Atomizing
Classical and Continuum Physics
Configurations
Distribution functions
Engineering
Kerosene
Multiphase Fluid Dynamics in Microgravity
Original Article
Size distribution
Space Exploration and Astronautics
Space Sciences (including Extraterrestrial Physics
Spatial distribution
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Summary:We studied fuel atomization in an air-assisted atomizer of aircraft engine with volume-of-fluid method in microgravitation approximation under the conditions closer to the ones of the operating cruise mode. The problem was looked upon in a two-dimensional axisymmetric configuration, including the simulation of the swirl velocity and in a three-dimensional configuration. We found a drop-size distribution function and spatial distribution of kerosene in an atomizer, which was designed by the engineers from UEC-Aviadvigatel JSC. We have hypothesized the formula connecting the drop-size distribution function obtained in the three-dimensional configuration with the distribution function obtained in the two-dimensional configuration. Along with that, the spray half angles found in these configurations appeared to be the same, although, generally, there is a difference in spatial distribution of kerosene drops.
ISSN:0938-0108
1875-0494
DOI:10.1007/s12217-020-09782-3