Publisher : The Korean Society for Aeronautical & Space Sciences
DOI : 10.5139/JKSAS.2015.43.11.971
Title & Authors
An Exploratory Study on the Speed Limit of Compound Gyroplane(1) : Aerodynamic Analysis of Rotor and Airframe Shin, Byung-joon; Kim, Hak-Yoon;
A numerical analysis for the performance of compound gyroplane in forward flight was performed. TSM(Transient Simulation Method) was used to analyze the performance of autorotating rotor. CFD was conducted for the fuselages to recognize the variation of aerodynamic performance according to flight speed. At given conditions; airspeed, shaft angle and collective pitch, the quasi-static states of autorotation were determined and the variation of rotor performance was observed. Performance analysis results showed that the effect of aerodynamic characteristics in accordance with the shape of fuselage is so important that the streamlined fuselage is essential to fly fast. Forward flight speed limit is dependent on the autorotation performance of rotor.
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