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Assessment of High-lift Concepts for a Regional Aircraft in the ALONOCO Project
- Source :
- 50th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition.
- Publication Year :
- 2012
- Publisher :
- American Institute of Aeronautics and Astronautics, 2012.
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Abstract
- This work introduces the work conducted in the EU JTI project ANOLOCO, which has aimed at an assessment of aerodynamic and aeroacoustic performance of several high-lift configurations of a regional aircraft. The high-lift designs are for a laminar and slat-less wing, including configurations with a double slotted flap, single slotted flap, drooped nose and a Krueger flap. The aerodynamic performance is assessed from steady state RANS calculations up to maximum lift. The aeroacoustic performance is based on hybrid RANS-LES calculations for flow-induced noise generation, and using acoustic analogy methods for far-field noise propagation. Three different analogy methods are evaluated and compared. The assessment shows that the configuration with a Krueger flap gives the best performance. The maximum lift is close to 20% higher than for any other configuration and the noise levels are also reduced, up to 10 dB lower than the configuration with a double slotted flap.
Details
- Database :
- OpenAIRE
- Journal :
- 50th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition
- Accession number :
- edsair.doi...........7ef2c4fb4592ee6362278dc0bbf12fd8