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Assessment of high-lift concepts for a regional aircraft in the ALONOCO project

P. Eliasson ; O. Grundestam ; S. H. Peng ; Huadong Yao (Institutionen för tillämpad mekanik, Strömningslära) ; Lars Davidson (Institutionen för tillämpad mekanik, Strömningslära) ; Lars-Erik Eriksson (Institutionen för tillämpad mekanik, Strömningslära)
50th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition, Nashville, 9-12 January 2012 (2012)
[Konferensbidrag, refereegranskat]

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.

Denna post skapades 2013-01-31. Senast ändrad 2017-10-03.
CPL Pubid: 172700


Institutioner (Chalmers)

Institutionen för tillämpad mekanik, Strömningslära (2005-2017)


Teknisk mekanik
Teknisk fysik

Chalmers infrastruktur