Journal of the Society of Naval Architects of Korea (대한조선학회논문집)

The Society of Naval Architects of Korea (대한조선학회)
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A Construction of Aerodynamic Force Measurement System for Wind Tunnel Test of Yacht Sail and Aerodynamic Forces Measurement of Model Sail

요트세일의 풍동시험을 위한 공력 계측시스템 구축과 모형세일의 공력 계측

  • Kim, Choul-Hee (Korea Ocean Research & Development Institute) ;
  • Choi, Jung-Kyu (Department of Naval Architecture & Ocean Engineering, Chungnam National University) ;
  • Kim, Hyoung-Tae (Department of Naval Architecture & Ocean Engineering, Chungnam National University)
  • 김철희 (한국해양연구원 대덕분원) ;
  • 최정규 (충남대학교 선박해양공학과) ;
  • 김형태 (충남대학교 선박해양공학과)
  • Received : 2011.06.26
  • Accepted : 2011.09.01
  • Published : 2011.10.20
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Abstract

In order to estimate a yacht sail performance, measuring system of aerodynamic forces acting on the yacht sail is constructed and experiments of flexible model sail are carried out at the medium-size subsonic wind tunnel of Chungnam National University. Experimental results for a flexible sail are compared with experimental and numerical results of fixed shape sail. In case of a fixed shape sail, lift and drag coefficients are rarely changed at all velocity conditions. However, those of the flexible sail are decreased as the incoming velocity is increased. These are understandably resulted from shape variations due to the flexible material. Therefore aero-elastic similarity should be more carefully considered in the model test rather than other similarities.

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References

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