A Study on the Design of Wells Turbine for Wave Power Conversion by Various Flap Shape (1)

플랩현상 변화에 따른 파력발전용 웰즈터빈의 형상설계에 관한 연구(1)

  • 김동균 (동명대학 첨단지식공학부) ;
  • 김정환 (한국조선기자재연구원) ;
  • 최윤환 (부경대학교 기계공학부) ;
  • 배석태 (동명대학 첨단지식공학부) ;
  • 이연원 (부경대학교 기계공학부) ;
  • 이영호 (한국해양대학교 기계ㆍ정보공학부)
  • Published : 2004.09.01

Abstract

A numerical investigation was performed to determine the effect of airfoil on the optimum flap height using NACA0015 Wells turbine. The five double flaps which have 0.5% difference were selected. A Navier-Stokes code, CFX-TASCflow, was used to calculate the flow field of the Wells turbine. The basic feature of the Wells turbine is that even though the cyclic airflow produces oscillating axial forces on the airfoil blades, the tangential force on the rotor is always in the same direction. Geometry used to define the three dimension numerical grid is based upon that of an experimental test rig. This paper tries In optimized disign the double flap of Wells turbine with the numerical analysis.

Keywords

References

  1. Ryu, C. L., 'Ocean energy engineering,' New technique, pp. 75-123
  2. 김정환, 'CFD에 의한 파력발전용 웰즈터빈의 3차원 유동특성에 관한 연구,' 부경대학교
  3. Kimoue, Y., Takao, M., Setoguchi, T. and Kaneko, K., 'The bi-directional impulse turbine for wave energy conversion,' 3nd ASME/JSME Joint Fluids Engineering Conference, pp. 1-7
  4. Facao, A. F. O., Whittaker, T. J. T. and Lewis, A. W., JOULEII Preliminary Action European Pilot Plant Study, Proc. 1993 European Wave Energy Symp., pp. 247-257, 1993
  5. CFX-TASCflow Users Manuals, CFX KOREA
  6. Patankar, S. V., 'Numerical heat transfer and fluid flow,' Hemispherere, Washington, D.C. 1980
  7. Waterson, J. K. and Raghunathan, S., 'Investigation of wells turbine performance using 3-D CFD,' IEEE, 1996