OS2-3 流入風の乱流スケールが風車後流特性に与える影響について(OS2 自然エネルギー利用技術,分散と集中の共存)

概要

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The change in turbulence structure in the wake of wind turbine with the inflow turbulence (IFT) was investigated with a wind tunnel. Special attention was paid to the effects of length-scale of inflow turbulence. Through the measurements of relation of thrust coefficient-tip speed ratio, and with the measurements of turbulence statistics, including higher-order moments, it was confirmed that the scale effects of wind turbine model on the wake characteristics was quite small. Then, it was found that the turbulence characteristics in the wake region strongly depend on the length-scale of IFT, i.e., the development of turbine wake becomes more active with the increase in length-scale of IFT, regardless to the intensity of fluctuating velocity of inflow turbulence.
社団法人日本機械学会の論文
2006-06-28