Journal cover Journal topic
Wind Energy Science The interactive open-access journal of the European Academy of Wind Energy
https://doi.org/10.5194/wes-2017-54
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 4.0 License.
Research articles
28 Nov 2017
Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Wind Energy Science (WES).
Experimental Validation of a Ducted Wind Turbine Design Strategy
Benjamin Kanya and Kenneth D. Visser Department of Mechanical and Aeronautical Engineering, Clarkson University, Potsdam, NY, USA 13699
Abstract. A synergistic design strategy for ducted horizontal axis wind turbines (DWTs), utilizing the numerical solution of a ducted actuator disk system as input conditions for a modified blade element momentum method, is presented. Computational results of the ducted disk have shown that the flow field for a DWT differs substantially from that of a conventional open rotor. The rotor plane velocity is higher in the ducted flow field, and more importantly, the axial velocity component varies radially. An experimental full scale 2.5 m rotor and duct were designed, using this strategy, and tested at the University of Waterloo’s wind turbine test facility. Experimental results indicated a very good correlation of the data with the numerical predictions, that being a doubling of the power output at a given velocity.

Citation: Kanya, B. and Visser, K. D.: Experimental Validation of a Ducted Wind Turbine Design Strategy, Wind Energ. Sci. Discuss., https://doi.org/10.5194/wes-2017-54, in review, 2017.
Benjamin Kanya and Kenneth D. Visser
Benjamin Kanya and Kenneth D. Visser
Benjamin Kanya and Kenneth D. Visser

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Short summary
The energy capture of a wind turbine can be improved by completely surrounding it with an airfoil shaped duct. This paper describes a new modeling strategy used to design an experimental 2.5 m turbine which was tested at the University of Waterloo wind turbine test facility. The wind tunnel data validated the predicted performance, indicating that the ducted turbine produced more than twice the output of a conventional turbine design of the same size. Design implications are also discussed.
The energy capture of a wind turbine can be improved by completely surrounding it with an...
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