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Large-eddy simulation of the interaction of a jet with a wing

Large-eddy simulation of the interaction of a jet with a wing
Large-eddy simulation of the interaction of a jet with a wing
This paper presents progresses made on aircraft installation effects using numerical methods under WP 3.2 of SYMPHONY, a project supported by Technology Strategy Board, UK. Large-eddy simulations (LES) were performed for turbulent flow around a wing under the influence from engine jet flow by solving the compressible Navier-Stokes equations using an in-horse high-order finite difference code. Simulations were performed for jet under both a clean wing and the wing at high-lift configuration. Installation effects on both the jet and the wing are analysed by comparing with LES results performed for three baseline cases: jet along, clean wing along and the wing in high-lift configuration. It is found that the flow is two-dimensional near the leading edge of the wing. Further down-stream three-dimensional flow features are developed. Interaction with vortical jet stream accelerates developments of the flow underneath the wing. Stronger turbulent structures are seen within the jet shear layer near the wing and their interaction with the wing causes surface pressure fluctuations, which results in increased radiated noise. Interaction with the jet causes a reduction in lift for the clean wing, however the contribution from the flap is increased when the wing is in high-lift configuration. For the current geometry the jet stream does not hit the clean wing, and it is shifted towards the wing by a small angle (one degree) due to low pressure region under the wing. When the ap is deployed, jet stream hits the flap and is deflected away from the wing.
Bondarenko, Maksym
1cbea387-2a42-4061-9713-bbfdf4d11226
Hu, Zhiwei
dd985844-1e6b-44ba-9e1d-fa57c6c88d65
Zhang, X.
3056a795-80f7-4bbd-9c75-ecbc93085421
Bondarenko, Maksym
1cbea387-2a42-4061-9713-bbfdf4d11226
Hu, Zhiwei
dd985844-1e6b-44ba-9e1d-fa57c6c88d65
Zhang, X.
3056a795-80f7-4bbd-9c75-ecbc93085421

Bondarenko, Maksym, Hu, Zhiwei and Zhang, X. (2012) Large-eddy simulation of the interaction of a jet with a wing. 18th AIAA/CEAS Aeroacoustics Conference, United States. 04 - 06 Jun 2012. 15 pp .

Record type: Conference or Workshop Item (Paper)

Abstract

This paper presents progresses made on aircraft installation effects using numerical methods under WP 3.2 of SYMPHONY, a project supported by Technology Strategy Board, UK. Large-eddy simulations (LES) were performed for turbulent flow around a wing under the influence from engine jet flow by solving the compressible Navier-Stokes equations using an in-horse high-order finite difference code. Simulations were performed for jet under both a clean wing and the wing at high-lift configuration. Installation effects on both the jet and the wing are analysed by comparing with LES results performed for three baseline cases: jet along, clean wing along and the wing in high-lift configuration. It is found that the flow is two-dimensional near the leading edge of the wing. Further down-stream three-dimensional flow features are developed. Interaction with vortical jet stream accelerates developments of the flow underneath the wing. Stronger turbulent structures are seen within the jet shear layer near the wing and their interaction with the wing causes surface pressure fluctuations, which results in increased radiated noise. Interaction with the jet causes a reduction in lift for the clean wing, however the contribution from the flap is increased when the wing is in high-lift configuration. For the current geometry the jet stream does not hit the clean wing, and it is shifted towards the wing by a small angle (one degree) due to low pressure region under the wing. When the ap is deployed, jet stream hits the flap and is deflected away from the wing.

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AIAA-2012-2254.pdf - Version of Record
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More information

e-pub ahead of print date: 4 June 2012
Venue - Dates: 18th AIAA/CEAS Aeroacoustics Conference, United States, 2012-06-04 - 2012-06-06
Organisations: Aerodynamics & Flight Mechanics Group

Identifiers

Local EPrints ID: 354426
URI: https://eprints.soton.ac.uk/id/eprint/354426
PURE UUID: 7f2c7d57-a4ef-4d5a-adee-b51e0b1d5db7

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Date deposited: 30 Jul 2013 14:09
Last modified: 13 Jun 2018 16:32

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