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ISSN Druckformat: 1065-3090
ISSN Online: 1940-4336
Indexed in
VISUALIZATION AND IMAGE PROCESSING OF THE FLOW IN AND AROUND A SAVONIUS ROTOR
ABSTRAKT
The phase-averaged velocity distributions in and around a Savonius rotor with and without rotation are measured by a particle image velocimetry with a conditional sampling technique, and the results are compared with the smoke-wire visualization pictures. The measured velocity distribution clearly reproduces the flow structure in and around the rotor observed in the qualitative visualizations. The present measurement also indicates quantitative information for the rotating rotor, such as the development of Coanda-like velocity distribution on the convex side of the advancing blade, its flow separation, and the following formation of the vortices, and the appearance of the flow concentration effect on the advancing blade by the presence of circulation. The effect of tip speed ratio on the flow mechanism is also discussed.
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Altan Burçin Deda, Atılgan Mehmet, Özdamar Aydoğan, An experimental study on improvement of a Savonius rotor performance with curtaining, Experimental Thermal and Fluid Science, 32, 8, 2008. Crossref
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Gao Sarsing, Pudur Rajen, Harnessing hydroelectric power using Savonius rotor coupled with asynchronous generator connected to grid, 2013 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC), 2013. Crossref
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Fujisawa Nobuyuki, Velocity measurements and numerical calculations of flow fields in and around Savonius rotors, Journal of Wind Engineering and Industrial Aerodynamics, 59, 1, 1996. Crossref
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Goodarzi M., Keimanesh R., Numerical analysis on overall performance of Savonius turbines adjacent to a natural draft cooling tower, Energy Conversion and Management, 99, 2015. Crossref
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Altan Burçin Deda, Atılgan Mehmet, An experimental and numerical study on the improvement of the performance of Savonius wind rotor, Energy Conversion and Management, 49, 12, 2008. Crossref
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Altan Burçin Deda, Atılgan Mehmet, The use of a curtain design to increase the performance level of a Savonius wind rotors, Renewable Energy, 35, 4, 2010. Crossref