Design and Wind Tunnel Testing of a Thick, Multi-Element High-Lift Airfoil

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Abstract

In this work a 2D CFD solver has been used
to optimize the shape of a leading edge slat
with a chord length of 30% of the main airfoil
which was 40% thick. The airfoil configuration
was subsequently tested in a wind tunnel
and compared to numerical predictions. The
multi-element airfoil was predicted to achieve a
Cl−max of 3.1 based on the main airfoil chord
length, which was confirmed in the wind tunnel
campaign. Using wake rake traversal and
wool tuft flow visualization wall interference effects
were investigated, which were found to
be a source of considerable uncertainty when
measuring on thick airfoils.

Original languageEnglish
Title of host publicationProceedings of EWEA 2012 - European Wind Energy Conference & Exhibition
Number of pages10
PublisherEuropean Wind Energy Association (EWEA)
Publication date2012
Publication statusPublished - 2012
EventEWEA 2012 - European Wind Energy Conference & Exhibition - Copenhagen, Denmark
Duration: 16 Apr 201219 Apr 2012
http://events.ewea.org/annual2012/

Conference

ConferenceEWEA 2012 - European Wind Energy Conference & Exhibition
CountryDenmark
CityCopenhagen
Period16/04/201219/04/2012
Internet address

Cite this

Zahle, F., Gaunaa, M., Sørensen, N. N., & Bak, C. (2012). Design and Wind Tunnel Testing of a Thick, Multi-Element High-Lift Airfoil. In Proceedings of EWEA 2012 - European Wind Energy Conference & Exhibition European Wind Energy Association (EWEA).