Closed loop control of a flap exposed to harmonic aerodynamic actuation

Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2012

Standard

Closed loop control of a flap exposed to harmonic aerodynamic actuation. / Velte, Clara Marika; Mikkelsen, Robert Flemming; Sørensen, Jens Nørkær; Kaloyanov, Teodor ; Gaunaa, Mac.

Proceedings of Torque 2012, The science of making torque from wind. 2012.

Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2012

Harvard

Velte, CM, Mikkelsen, RF, Sørensen, JN, Kaloyanov, T & Gaunaa, M 2012, 'Closed loop control of a flap exposed to harmonic aerodynamic actuation'. in Proceedings of Torque 2012, The science of making torque from wind.

APA

Velte, C. M., Mikkelsen, R. F., Sørensen, J. N., Kaloyanov, T., & Gaunaa, M. (2012). Closed loop control of a flap exposed to harmonic aerodynamic actuation. In Proceedings of Torque 2012, The science of making torque from wind.

CBE

Velte CM, Mikkelsen RF, Sørensen JN, Kaloyanov T, Gaunaa M. 2012. Closed loop control of a flap exposed to harmonic aerodynamic actuation. In Proceedings of Torque 2012, The science of making torque from wind.

MLA

Velte, Clara Marika et al. "Closed loop control of a flap exposed to harmonic aerodynamic actuation". Proceedings of Torque 2012, The science of making torque from wind. 2012.

Vancouver

Velte CM, Mikkelsen RF, Sørensen JN, Kaloyanov T, Gaunaa M. Closed loop control of a flap exposed to harmonic aerodynamic actuation. In Proceedings of Torque 2012, The science of making torque from wind. 2012.

Author

Velte, Clara Marika; Mikkelsen, Robert Flemming; Sørensen, Jens Nørkær; Kaloyanov, Teodor ; Gaunaa, Mac / Closed loop control of a flap exposed to harmonic aerodynamic actuation.

Proceedings of Torque 2012, The science of making torque from wind. 2012.

Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2012

Bibtex

@inbook{7a69337620c241fd9aa2f0f194d66529,
title = "Closed loop control of a flap exposed to harmonic aerodynamic actuation",
author = "Velte, {Clara Marika} and Mikkelsen, {Robert Flemming} and Sørensen, {Jens Nørkær} and Teodor Kaloyanov and Mac Gaunaa",
year = "2012",
booktitle = "Proceedings of Torque 2012, The science of making torque from wind",

}

RIS

TY - GEN

T1 - Closed loop control of a flap exposed to harmonic aerodynamic actuation

A1 - Velte,Clara Marika

A1 - Mikkelsen,Robert Flemming

A1 - Sørensen,Jens Nørkær

A1 - Kaloyanov,Teodor

A1 - Gaunaa,Mac

AU - Velte,Clara Marika

AU - Mikkelsen,Robert Flemming

AU - Sørensen,Jens Nørkær

AU - Kaloyanov,Teodor

AU - Gaunaa,Mac

PY - 2012

Y1 - 2012

N2 - Wind tunnel testing of a two-dimensional aerofoil with a load reducing flap has been conducted under the influence of a closed-loop controller (PID). Upstream synthetic perturbations for well-defined testing of the controller were generated by instrumenting the wind tunnel with two fast turning vanes placed in front of the main test wing. These were situated symmetrically above and below the airfoil in a way that created a fast turning of the air flow without directly affecting the boundary layer on the test airfoil. The Reynolds number was Re=500.000. The PID-controlled flap was able to alleviate the load variations with reductions above 80% for reduced frequencies up to k = 0.028 and nearly 70% at k=0.054. At about 0.108 and higher a different strategy is needed for the present setup as the reduction is low or even negative.

AB - Wind tunnel testing of a two-dimensional aerofoil with a load reducing flap has been conducted under the influence of a closed-loop controller (PID). Upstream synthetic perturbations for well-defined testing of the controller were generated by instrumenting the wind tunnel with two fast turning vanes placed in front of the main test wing. These were situated symmetrically above and below the airfoil in a way that created a fast turning of the air flow without directly affecting the boundary layer on the test airfoil. The Reynolds number was Re=500.000. The PID-controlled flap was able to alleviate the load variations with reductions above 80% for reduced frequencies up to k = 0.028 and nearly 70% at k=0.054. At about 0.108 and higher a different strategy is needed for the present setup as the reduction is low or even negative.

BT - Proceedings of Torque 2012, The science of making torque from wind

T2 - Proceedings of Torque 2012, The science of making torque from wind

ER -