DOI QR코드

DOI QR Code

요트 세일 주위의 난류유동 계산

Turbulent Flow Calculation around Yacht Sails

  • 지혜련 (목포대학교 기계.선박해양공학부 선박해양시스템) ;
  • 김우전 (목포대학교 기계.선박해양공학부 선박해양시스템) ;
  • 박종환 (목포대학교 기계.선박해양공학부 선박해양시스템)
  • 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)
  • 발행 : 2007.04.20

초록

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.

키워드

참고문헌

  1. 유재훈, 박일룡, 김진, 안해성, 반석호, 이평국, 2005, '요트의 Main세일과 Jib세일 사이의 간섭효과에 대한 수치해석,' 대한조선학회 논문집, 제 42권, 제 1호, pp. 34-42 https://doi.org/10.3744/SNAK.2005.42.1.024
  2. 유재훈, 안해성, 2005, '30피트급 요트의 유체력에 대한 실험적 연구,' 대한조선학회 논문집, 제 42권, 제 3호, pp. 233-240 https://doi.org/10.3744/SNAK.2005.42.3.233
  3. 이평국, 김형태, 유재훈, 2006, '풍동 실험시 요트 세일 공력에 미치는 차폐효과에 대한 수치해석,' 대한조선학회 논문집, 제 43권, 제 4호, pp. 431-439 https://doi.org/10.3744/SNAK.2006.43.4.431
  4. Fluent Inc., 2001, Fluent manual
  5. Larsson, L. and Eliasson, R.E.2000, Principles of Yacht Design, International Marine of McGraw Hill
  6. Pointwise Inc., 1997, Gridgen manual
  7. Wilcox, D.C., 1993, Turbulence Modeling for CFD, DCW Industries

피인용 문헌

  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