Numerical Study on the Effect of Vortex Generators on S-Shaped Intake in Propeller Slipstream
Publication: Journal of Aerospace Engineering
Volume 35, Issue 3
Abstract
In turboprop engines, the lip of the S-shaped intake is behind the propeller rotation plane, so the complex slipstream flowfield has a strong impact on the flowfield in the S-shaped intake and affects engine performance. The present work attempts to improve the flowfield in the S-shaped intake in turboprop engines by using vortex generators. The research was carried out by solving Reynolds-averaged Navier–Stokes equations employed SST turbulence model. An attempt was made to explore the vortex generators’ effect on S-shaped intake performance in the propeller slipstream. The results show that the total pressure recovery coefficient and distortion coefficient change periodically with time for the S-shaped intake in the propeller slipstream. For S-shaped intake with vortex generators (, 12-mm height, 18° with the incoming flow) in the propeller slipstream, the vortices induced by the vortex generators are coupled with the propeller slipstream, which effectively inhibits flow separation in the S-shaped intake for turboprop engine and improves air quality on the aerodynamic interface plane (AIP) section of the S-shaped intake.
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Data Availability Statement
Some or all data, models, or code that support the findings of this study are available from the corresponding author upon reasonable request.
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Information & Authors
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Published In
Journal of Aerospace Engineering
Volume 35 • Issue 3 • May 2022
Copyright
© 2022 American Society of Civil Engineers.
History
Received: Mar 8, 2021
Accepted: Nov 29, 2021
Published online: Feb 14, 2022
Published in print: May 1, 2022
Discussion open until: Jul 14, 2022
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