TY - GEN

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

A1 - Zahle,Frederik

A1 - Gaunaa,Mac

A1 - Sørensen,Niels N.

A1 - Bak,Christian

AU - Zahle,Frederik

AU - Gaunaa,Mac

AU - Sørensen,Niels N.

AU - Bak,Christian

PB - EWEA - The European Wind Energy Association

PY - 2012

Y1 - 2012

N2 - <p>In this work a 2D CFD solver has been used <br/> to optimize the shape of a leading edge slat <br/> with a chord length of 30% of the main airfoil <br/> which was 40% thick. The airfoil configuration <br/> was subsequently tested in a wind tunnel <br/> and compared to numerical predictions. The <br/> multi-element airfoil was predicted to achieve a <br/> C_l−max of 3.1 based on the main airfoil chord <br/> length, which was confirmed in the wind tunnel <br/> campaign. Using wake rake traversal and <br/> wool tuft flow visualization wall interference effects <br/> were investigated, which were found to <br/> be a source of considerable uncertainty when <br/> measuring on thick airfoils.</p>

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

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

T2 - Proceedings of EWEA 2012 - European Wind Energy Conference & Exhibition

ER -