Wind Energy Science
Wind Energy Science
WES
Articles | Volume 6, issue 6
Articles | Volume 6, issue 6
https://doi.org/10.5194/wes-6-1413-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/wes-6-1413-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 6, issue 6
Research article
 | 
09 Nov 2021
Research article |  | 09 Nov 2021

Some effects of flow expansion on the aerodynamics of horizontal-axis wind turbines

David H. Wood and Eric J. Limacher

Viewed

Total article views: 1,928 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
1,240 607 81 1,928 72 66
  • HTML: 1,240
  • PDF: 607
  • XML: 81
  • Total: 1,928
  • BibTeX: 72
  • EndNote: 66
Views and downloads (calculated since 07 Jun 2021)
Cumulative views and downloads (calculated since 07 Jun 2021)

Viewed (geographical distribution)

Total article views: 1,928 (including HTML, PDF, and XML) Thereof 1,896 with geography defined and 32 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 

Cited

Latest update: 30 May 2025
Download
Short summary
The airflow through a wind turbine must expand as it goes through the blades for them to extract energy from the wind. Expansion has not been properly incorporated in wind turbine aerodynamics. We show that the conventional equation for wind turbine thrust becomes inaccurate when the expansion is maximized to achieve maximum power, and expansion reduces power by around 6 %. We formulate equations for the disturbance of the external flow and show that this is maximized at the rotor plane.
Read more
Share
Altmetrics
Final-revised paper
Preprint