| Budget Amount *help |
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2012: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Outline of Final Research Achievements |
Wind turbine performance was predicted by both codes of a 2D-CFD and a BEM and verified a precision in comparison with experiments of a wind tunnel. Wind conditions in Kumejima Island were analyzed using metrological station data and characteristics of a 100kW rated turbine were shown. A CFD code of wind forecast adopted a turbulence model with surface roughness and was verified a precision in comparison with experiments of a wind tunnel study over a hill. Most frequent direction condition, north wind case, was simulated in Kumejima Island.
A 3D-CFD code of performance prediction adopted a low Reynolds number turbulence model and was compared with experiments of wind turbines having two or three blades. Furthermore, the CFD code without a turbulence model was verified a precision in small time increment and was confirmed effects of separation phenomena which influenced lift and drag forces.
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