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Requirement Analysis and Drag Prediction for the Aerodynamic Configuration of a Bearingless Rotor Hub  

Kang, Hee-Jung (한국항공우주연구원 회전익기술팀)
Publication Information
Aerospace Engineering and Technology / v.11, no.1, 2012 , pp. 19-26 More about this Journal
Abstract
The requirement for the aerodynamic hub drag, allocated from the system requirement of development of a bearingless rotor hub, was analyzed and embodied to be substantiated by the methodology assigned from the requirement. Drag prediction for the initial hub configuration was carried out by hand calculation using aerodynamic drag coefficients and the design change about the sectional shape of torque tube was suggested to satisfy the requirement. Finally, drag prediction was performed for the changed hub configuration by using unstructured overset mesh technique and parallel computation and the calculated result satisfied the requirement of the aerodynamic hub drag. It was found that the drag of final hub configuration was also within the range of drag inferred from the trendline of developed helicopter.
Keywords
Helicopter; Bearingless Rotor Hub; Aerodynamic Drag; Compuatational Fluid Dynamics; Unstructured Overset Mesh;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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