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Application of a free vortex wake model to a horizontal axis wind turbine

Simoes, F.J. / Graham, J.M.R.

Abstract A theoretical model is applied to the rotor aerodynamics of a horizontal axis twin-bladed wind turbine. The model combines a vortex lattice representation of the flow over the blade with a free vortex near wake which is iteratively relaxed into the local flow direction. Beyond this region the near wake is joined to a simplified axisymmetric far wake. Separated flow over the blades is represented by an extension of the source wake model of Parkinson and Jandali in which the separation pressure must be specified. The results are compared with predictions made using standard blade element theory and some experimental blade pressure measurements.

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Application of a free vortex wake model to a horizontal axis wind turbine

Simoes, F.J. / Graham, J.M.R.

Abstract A theoretical model is applied to the rotor aerodynamics of a horizontal axis twin-bladed wind turbine. The model combines a vortex lattice representation of the flow over the blade with a free vortex near wake which is iteratively relaxed into the local flow direction. Beyond this region the near wake is joined to a simplified axisymmetric far wake. Separated flow over the blades is represented by an extension of the source wake model of Parkinson and Jandali in which the separation pressure must be specified. The results are compared with predictions made using standard blade element theory and some experimental blade pressure measurements.

Application of a free vortex wake model to a horizontal axis wind turbine

Simoes, F.J. / Graham, J.M.R.

Abstract A theoretical model is applied to the rotor aerodynamics of a horizontal axis twin-bladed wind turbine. The model combines a vortex lattice representation of the flow over the blade with a free vortex near wake which is iteratively relaxed into the local flow direction. Beyond this region the near wake is joined to a simplified axisymmetric far wake. Separated flow over the blades is represented by an extension of the source wake model of Parkinson and Jandali in which the separation pressure must be specified. The results are compared with predictions made using standard blade element theory and some experimental blade pressure measurements.

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Document information

Title:

Application of a free vortex wake model to a horizontal axis wind turbine

Contributors:

Simoes, F.J. (author) / Graham, J.M.R. (author)

Published in:

Journal of Wind Engineering and Industrial Aerodynamics ; 39 ; 129-138

Publication date:

1992-01-01

Size:

10 pages

ISSN:

DOI:

https://doi.org/10.1016/0167-6105(92)90539-M

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

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