Journal cover Journal topic
Wind Energy Science The interactive open-access journal of the European Academy of Wind Energy
Journal topic
Discussion papers
https://doi.org/10.5194/wes-2019-62
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/wes-2019-62
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Submitted as: research article 05 Sep 2019

Submitted as: research article | 05 Sep 2019

Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Wind Energy Science (WES).

Ducted wind turbines in yawed flow: A numerical study

Vinit Dighe1, Dhruv Suri2, Francesco Avallone1, and Gerard van Bussel1 Vinit Dighe et al.
  • 1Wind Energy Research Group, Faculty of Aerospace Engineering, Technological University of Delft, Netherlands
  • 2Renewable Energy Research Group, Department of Aeronautical and Automobile Engineering, Manipal Institute of Technology, India

Abstract. Ducted Wind Turbines (DWTs) can be used for energy harvesting in urban areas where non-uniform flows are caused by the presence of buildings or other surface discontinuities. For this reason, the aerodynamic performance of DWTs in yawed flow conditions must be characterized. A numerical study to investigate the characteristics of flow around two DWT configurations using a simplified duct-actuator disc (AD) model is carried out. The analysis shows that the aerodynamic performance of a DWT in yawed flow is dependent on the mutual interaction between the duct and the rotor; an interaction that changes with duct geometry, AD loading and operating conditions. It is found that the duct cross-section camber not only offers insensitivity to yaw, but also a gain in performance up to a specific yaw angle; thereafter any further increase of yaw results in a performance drop.

Vinit Dighe et al.
Interactive discussion
Status: open (until 22 Oct 2019)
Status: open (until 22 Oct 2019)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
[Subscribe to comment alert] Printer-friendly Version - Printer-friendly version Supplement - Supplement
Vinit Dighe et al.
Vinit Dighe et al.
Viewed  
Total article views: 176 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
120 51 5 176 2 2
  • HTML: 120
  • PDF: 51
  • XML: 5
  • Total: 176
  • BibTeX: 2
  • EndNote: 2
Views and downloads (calculated since 05 Sep 2019)
Cumulative views and downloads (calculated since 05 Sep 2019)
Viewed (geographical distribution)  
Total article views: 51 (including HTML, PDF, and XML) Thereof 50 with geography defined and 1 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 
Cited  
Saved  
No saved metrics found.
Discussed  
No discussed metrics found.
Latest update: 22 Sep 2019
Publications Copernicus
Download
Short summary
Ducted Wind Turbines (DWTs) can be used for energy harvesting in urban areas where non-uniform flows are caused by the presence of buildings or other surface discontinuities. For this reason, the aerodynamic performance of DWTs in yawed flow conditions must be characterized. It is found that the duct cross-section camber not only offers insensitivity to yaw, but also a gain in performance up to a specific yaw angle; thereafter any further increase of yaw results in a performance drop.
Ducted Wind Turbines (DWTs) can be used for energy harvesting in urban areas where non-uniform...
Citation