Journal of Aerospace System Engineering (항공우주시스템공학회지)

The Society for Aerospace System Engineering (항공우주시스템공학회)
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Numerical Analysis of the Effect of Fuselage of Fan-in-body Aircraft on the Pusher Propeller

  • Kang, Jiwook (Aerospace Technology Research Institute, Agency for Defense Development) ;
  • Jang, Jisung (Aerospace Technology Research Institute, Agency for Defense Development) ;
  • You, Younghyun (Aerospace Technology Research Institute, Agency for Defense Development) ;
  • Hyun, Youngo (Aerospace Technology Research Institute, Agency for Defense Development) ;
  • Lee, Jonghun (Aerospace Technology Research Institute, Agency for Defense Development)
  • Received : 2020.12.17
  • Accepted : 2021.01.26
  • Published : 2021.04.30
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Abstract

In this study, CFD analysis was conducted to compare the aerodynamic performance of the isolated propeller and pusher propeller, which is affected by the wake of wide fuselage. The moving reference frame (MRF) method was used for isolated propeller analysis, while the MRF and sliding mesh method were used sequentially for the pusher propeller to analyze the change in the aerodynamic characteristics based on the azimuth angle. Under the same torque condition, the thrust of the pusher propeller was greater than that of the isolated propeller. Thrust increment of the pusher propeller was mainly generated near the root of the blade where the fuselage wake was concentrated. The net efficiency of the pusher propeller was greater than or equal to that of the isolated propeller. Because of the flat fuselage shape, thrust and torque of the pusher propeller periodically changed with the rotation of the propeller.

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References

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