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http://dx.doi.org/10.5139/JKSAS.2010.38.1.012

Experimental Study on the Small-Scale Rotor Hover Performance in Partial Ground Conditions  

Seo, Jin-Woo (부산대학교 항공우주공학과 대학원)
Lee, Byoung-Eon (부산대학교 항공우주공학과 대학원)
Kang, Beom-Soo (부산대학교 항공우주공학과)
Oh, Se-Jong (부산대학교 항공우주공학과)
Yee, Kwan-Jung (부산대학교 항공우주공학과)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.38, no.1, 2010 , pp. 12-21 More about this Journal
Abstract
This paper focuses on the hover performance experiment of a small-scale single rotor in partial ground conditions. In this study, small-scale rotor blade rotating device and floor panel are used to include partial ground effect. Thrust and torque were measured with varying collective pitch angles at fixed rotor rotating speed. The overlap distance between rotor and ground is d, the rotor diameter is D. It was shown that the ground effects have little effect on the rotor performance until d/D is 0.25. Four blade rotor has more increased thrust and more reduced power than those of two blade rotor because of stronger ground effect. In addition, it was also found that the thrust increases as a collective pitch angle become smaller. Based on these experiment results, we deduced new empirical equation considered blade number and partial ground effect.
Keywords
Small-scale Rotor Blade; Rotor Blade Rotating Device; Partial Ground Effect; Floor Panel;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
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