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

Frederik Zahle; Mac Gaunaa; Niels N. Sørensen; Christian Bak

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

Frederik Zahle, Mac Gaunaa, Niels N. Sørensen, Christian Bak

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

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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
C_l−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 language	English
Title of host publication	Proceedings of EWEA 2012 - European Wind Energy Conference & Exhibition
Number of pages	10
Publisher	European Wind Energy Association (EWEA)
Publication date	2012
Publication status	Published - 2012
Event	EWEC 2012 - European Wind Energy Conference & Exhibition - Copenhagen, Denmark Duration: 16 Apr 2012 → 19 Apr 2012 http://events.ewea.org/annual2012/

Conference

Conference	EWEC 2012 - European Wind Energy Conference & Exhibition
Country/Territory	Denmark
City	Copenhagen
Period	16/04/2012 → 19/04/2012
Internet address	http://events.ewea.org/annual2012/

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

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.",

author = "Frederik Zahle and Mac Gaunaa and S{\o}rensen, {Niels N.} and Christian Bak",

year = "2012",

language = "English",

booktitle = "Proceedings of EWEA 2012 - European Wind Energy Conference & Exhibition",

publisher = "European Wind Energy Association (EWEA)",

note = "EWEC 2012 - European Wind Energy Conference & Exhibition, EWEC 2012 ; Conference date: 16-04-2012 Through 19-04-2012",

url = "http://events.ewea.org/annual2012/",

}

Design and Wind Tunnel Testing of a Thick, Multi-Element High-Lift Airfoil. / Zahle, Frederik ; Gaunaa, Mac ; Sørensen, Niels N. et al.
Proceedings of EWEA 2012 - European Wind Energy Conference & Exhibition. European Wind Energy Association (EWEA), 2012.

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

TY - GEN

T1 - Design and Wind Tunnel Testing of a Thick, Multi-Element High-Lift Airfoil

AU - Zahle, Frederik

AU - Gaunaa, Mac

AU - Sørensen, Niels N.

AU - Bak, Christian

PY - 2012

Y1 - 2012

N2 - 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.

AB - 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.

M3 - Article in proceedings

BT - Proceedings of EWEA 2012 - European Wind Energy Conference & Exhibition

PB - European Wind Energy Association (EWEA)

T2 - EWEC 2012 - European Wind Energy Conference & Exhibition

Y2 - 16 April 2012 through 19 April 2012

ER -

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

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