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http://dx.doi.org/10.12985/ksaa.2017.25.2.063

An Experimental Study on Aerodynamic Performance of a Rotor-Blade Configuration under Cross-Wind Conditions  

Kang, Seung-Hee (전북대학교 항공우주공학과)
Ryu, Ki-Wahn (전북대학교 항공우주공학과)
Publication Information
Journal of the Korean Society for Aviation and Aeronautics / v.25, no.2, 2017 , pp. 63-68 More about this Journal
Abstract
In the present study, a wind tunnel test for a rotor-blade configuration was conducted to investigate a basic aerodynamic performance and a effect of the cross wind. The diameter of the configuration was 1.46 m and the test was carried out for both a clean and a tripped configurations. The boundary layer for the trip configuration was simulated by zig-zag tape and the test performed on constant-velocity and constant-rotational modes. It was shown that the test result for the tripped configuration reduces the maximum power coefficient by 9.4% ~ 12.1% compared to the clean one. Within $5^{\circ}$ of the flow angle, there is no significant loss of power, however, the coefficient is reduced by 5.3% ~ 36.7% in the range of $10^{\circ}{\sim}30^{\circ}$.
Keywords
Rotor-Blade Configuration; Wind-Tunnel Test; Cross-Wind Effect; Boundary-Layer Trip; Test Stand;
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