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Turbulent Flow Calculation around Yacht Sails

요트 세일 주위의 난류유동 계산

  • Chi, Hye-Ryoun (Department of Naval Architecture & Marine Eng., Mokpo National University) ;
  • Kim, Wu-Joan (Department of Naval Architecture & Marine Eng., Mokpo National University) ;
  • Park, Jong-Hwan (Department of Naval Architecture & Marine Eng., Mokpo National University)
  • 지혜련 (목포대학교 기계.선박해양공학부 선박해양시스템) ;
  • 김우전 (목포대학교 기계.선박해양공학부 선박해양시스템) ;
  • 박종환 (목포대학교 기계.선박해양공학부 선박해양시스템)
  • Published : 2007.04.20

Abstract

Turbulent flows around yacht sails were calculated to access the applicability of CFD for yacht design. Multi-block grid system was generated by using Gridgen package and Fluent was used to calculate flows around two sail system. A 30ft class sailing yacht designed and tested by KRISO was chosen. The interference effect between main and jib sails was analyzed. Pressure distribution on the sails was obtained and the center of effort was estimated. It was found that the jib angle affects the flow phenomena around a main sail due to the change of inflow angle. The location of center of effort is much different from the empirical formula based on a simple geometrical consideration. The calculated results are compared with the previous numerical and experimental results. Both CFD results are similar, but there are some discrepancies with experimental data. However, it is certain that CFD can be a very useful tool for yacht design.

Keywords

References

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  1. Preparation of Yacht Sail Using High Tenacity Polyester and Its Performance Evaluation vol.24, pp.1, 2012, https://doi.org/10.5764/TCF.2012.24.1.54