2014 Fiscal Year Final Research Report
An Investigation of Propeller Turbine Performance with Low-Aspect-Ratio Blade for Downsizing
| Project/Area Number |
25870395
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Fluid engineering
Naval and maritime engineering
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| Research Institution | Osaka University |
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Principal Investigator |
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| Project Period (FY) |
2013-04-01 – 2015-03-31
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| Keywords | プロペラタービン / 風力発電 / 潮流発電 / 後方スウィープ / 誘導抵抗 |
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| Outline of Final Research Achievements |
Reducing a diameter and rotational speed of the propeller turbines of wind power or tidal power generations is beneficial to cut a cost and to save an environment. However, reducing them leads to an increase of the aerodynamic losses due to induced and profile drags of the blades. In the present work, experimental and numerical investigations were carried out to improve aerodynamic characteristics of the propeller turbine with the small diameter and the low rotational speed. Experimental results show that the axial torque and the power are increased by swept-back blade. The numerical result shows that the influence of the induced velocity of the swept-back blade on the blade is reduced.
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| Free Research Field |
流体工学
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