Summaries to Technical Papers of Annual Meeting, Japan Association for Wind Engineering
Annual Meeting 2005, Japan Association for Wind Engineering
Session ID : s11-4
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Effects Of Freestream Turbulence On Turbine Wake Characteristics
*YASUO HATTORI, MANABU YAMAMOTO, YUZURU EGUCHI, KOJI KONDO, HITOSHI SUTO, NOBUKAZU TANAKA
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Keywords: Wind turbine, Wake, Wind tunnel test, Freestream turbulence, Scale model
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Abstract

The effects of freestream turbulence on the turbine wake characteristics have been experimentally investigate with a wind tunnel. Using a large-scale turbulence grid, the high level turbulence involved in the freestream was generated. The turbulence measurements indicate that the wake structure of wind turbine markedly changes with an increase in freestream turbulence. This is caused by the increases in the critical Reynolds for an aerofoil with the intensity of velocity fluctuation in freestream.

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© 2005 Japan Association for Wind Engineering
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