Tow testing of Savonius wind turbine above a bluff body complemented by CFD simulation

Goh, Seach Chyr, Boopathy, Sethu Raman, Krishnaswami, Chidambaresan and Schluter, Jorg Uwe 2016, Tow testing of Savonius wind turbine above a bluff body complemented by CFD simulation, Renewable energy, vol. 87, no. Part 1, pp. 332-345, doi: 10.1016/j.renene.2015.10.015.

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Title Tow testing of Savonius wind turbine above a bluff body complemented by CFD simulation
Author(s) Goh, Seach Chyr
Boopathy, Sethu Raman
Krishnaswami, Chidambaresan
Schluter, Jorg UweORCID iD for Schluter, Jorg Uwe
Journal name Renewable energy
Volume number 87
Issue number Part 1
Start page 332
End page 345
Total pages 14
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2016-03
ISSN 0960-1481
Keyword(s) Savonius
wind turbine
tow testing
bluff body
building integrated renewable energy
computational fluid dynamics
Summary A simple way to improve its power coefficient (cp) of a Savonius turbine is by its installation above a cuboidal building as the building will redirect the wind and increase its speed significantly. To determinethe gain, a turbine was constructed and installed above a bluff body and tow tested. Detailed measurements of vehicle speed and turbine power were made. Tow test speeds were 8, 10 and 12 m/s, while TSR range was 0.6-1.1. Most importantly, wind speed at the position beside and slightly above the turbine was measured during test runs. The cp calculated using this measured wind speed was used to validate CFD simulation results. Simulation results were also used to obtain the relationships between the wind speed of the free stream and at the anemometer position. Typically, wind speed at the anemometer position is about 9% higher than those of the free stream. These relationships were used to derive the free stream wind speed of each experimental run. The cp calculated using these derived free stream wind speeds showed an increase of 25% at 12 m/s wind speed, compared to the cp reported by previous researchers for a similar turbine operating in unmodified air flow.
Language eng
DOI 10.1016/j.renene.2015.10.015
Field of Research 0906 Electrical And Electronic Engineering
0913 Mechanical Engineering
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category C1.1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2015, Elsevier
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