International Journal of Aeronautical and Space Sciences

The Korean Society for Aeronautical and Space Sciences (한국항공우주학회)
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Aerodynamic performance enhancement of cycloidal rotor according to blade pivot point movement and preset angle adjustment

  • Hwang, In-Seong (School of Mechanical and Aerospace Engineering, Seoul National University) ;
  • Kim, Seung-Jo (School of Mechanical and Aerospace Engineering, Seoul National University)
  • Published : 2008.11.30
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Abstract

This paper describes aerodynamic performance enhancement of cycloidal rotor according to the blade pivot point movement and the blade preset angle adjustment. Cycloidal blade system which consists of several blades rotating about an axis in parallel direction and changing its pitch angle periodically, is a propulsion mechanism of a new concept vertical take off and landing aircraft, cyclocopter. Based on the designed geometry of cyclocopter, numerical analysis was carried out by a general purpose commercial CFD program, STAR-CD. According to tills analysis, the efficiency of cycloidal rotor could be improved more than 15% by the introduced methods.

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References

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