Ocean Systems Engineering

  • 제4권3호
  • /
  • Pages.169-183
  • /
  • 2014
  • /
  • 2093-6702(pISSN)
  • /
  • 2093-677X(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Numerical analysis of a hybrid substructure for offshore wind turbines

  • Park, Min-Su (Structural Engineering Research Division, Korea Institute of Civil Engineering and Building Technology) ;
  • Jeong, Youn-Ju (Structural Engineering Research Division, Korea Institute of Civil Engineering and Building Technology) ;
  • You, Young-Jun (Structural Engineering Research Division, Korea Institute of Civil Engineering and Building Technology) ;
  • Lee, Du-Ho (Structural Engineering Research Division, Korea Institute of Civil Engineering and Building Technology) ;
  • Kim, Byeong-Cheol (Structural Engineering Research Division, Korea Institute of Civil Engineering and Building Technology)
  • 투고 : 2014.07.03
  • 심사 : 2014.08.14
  • 발행 : 2014.09.25
⟨ 이전 논문 다음 논문 ⟩

초록

For the reliable design of substructure supporting offshore wind turbines it is very important to reduce the effects of wave forces. Since the substructure is strongly influenced by the effects of wave forces as the size of substructure increases. In the present study, the hybrid substructure with multi-cylinder is newly suggested to reduce the effects of wave forces. Using diffraction theory the scattering waves in a fluid region are expressed by an Eigenfunction expansion method with three dimensional potential theory to calculate the wave force acting on the hybrid substructure. The wave force and wave run-up acting on the hybrid substructure is presented to examine the water wave interaction according to the variation of cylindrical size and the distance among cylinders. It is found that the suggested hybrid substructure with multi-cylinder is very useful to reduce the effects of wave forces acting on the substructure for offshore wind turbines.

키워드

과제정보

연구 과제번호 : Development of hybrid substructure systems for offshore wind power

연구 과제 주관 기관 : Korea Institute of Energy Technology

참고문헌

  1. Abramowitz, M. and Stegun, I.A. (1972), Handbook of mathematical functions, Dover Publications, New York.
  2. Cho, I.H. and Kim, M.H. (2010), "Wave deformation and blocking performance by N porous bottom-mounted vertical circular cylinders", Int. J. Offshore Polar., 20(4), 284-291.
  3. Cho, I.H., Kim, M.H. and Kweon, H.M. (2012), "Wave energy converter by using relative heave motion between buoy and inner dynamic system", Ocean Syst. Eng., 2(4), 297-314. https://doi.org/10.12989/ose.2012.2.4.297
  4. Kagemoto, H. and Yue, D.K.P. (1986), "Interactions among multiple three-dimensional bodies in water waves; an exact algebraic method", J. Fluid Mech., 166, 189-209. https://doi.org/10.1017/S0022112086000101
  5. Kim, M.H. (1993), "Interaction of waves with N vertical circular cylinders", J. Waterw. Port C-ASCE., 119(6), 671-689. https://doi.org/10.1061/(ASCE)0733-950X(1993)119:6(671)
  6. Linton. C.M. and Evans. D.V. (1990), "The interaction of waves with arrays of vertical circular cylinder", J. Fluid Mech., 215, 549-569. https://doi.org/10.1017/S0022112090002750
  7. McIver, P. (1984), "Wave forces on arrays of floating bodies", J. Eng. Math., 18(4), 273-285. https://doi.org/10.1007/BF00042842
  8. McIver, P. and Evans, D.V. (1984), "Approximation of wave forces on cylinder arrays", Appl. Ocean Res., 6(2), 101-107. https://doi.org/10.1016/0141-1187(84)90047-6
  9. Park, M.S., Koo, W.C. and Choi, Y.R. (2010), "Hydrodynamic interaction with an array of porous circular cylinders", Int. J. Naval Architecture and Ocean Eng., 2(3), 146-154. https://doi.org/10.3744/JNAOE.2010.2.3.146
  10. South Korea offshore wind project plan (2011), .
  11. Spring, B.H. and Monkmeyer, P.L. (1974), "Interaction of plane waves with vertical cylinders", Proceedings of the 14th International Conference on Coastal Engineering.
  12. Williams, A.N. and Abul-Azm, A.G. (1989), "Hydrodynamic interactions in floating cylinder arrays; Part II-Wave radiation", Ocean Eng., 16(3), 217-264. https://doi.org/10.1016/0029-8018(89)90019-X
  13. Williams, A.N. and Demirbilek, Z. (1988), "Hydrodynamic interactions in floating cylinder arrays; Part I-Wave scattering", Ocean Eng., 15(6), 549-583. https://doi.org/10.1016/0029-8018(88)90002-9
  14. Williams, A.N. and Li, W. (1998), "Wave interaction with a semi-porous cylindrical breakwater mounted on a storage tank", Ocean Eng., 25(2-3), 195-219. https://doi.org/10.1016/S0029-8018(97)00006-1
  15. Williams, A.N. and Li, W. (2000), "Wave interaction with an array of bottom-mounted surface-piercing porous cylinders", Ocean Eng., 27(8), 841-866. https://doi.org/10.1016/S0029-8018(99)00004-9
  16. Williams, A.N., and Rangappa, T. (1994), "Approximate hydro-dynamic analysis of multi-column ocean structures", Ocean Eng., 21(6), 519-573. https://doi.org/10.1016/0029-8018(94)90006-X
  17. Zhao, F., Bao, W., Kinoshita, T. and Itakura, H. (2011), "Theoretical and experimental study on a porous cylinder floating in waves", J. Offshore Mech. Arct., 133(1), 301-311.

피인용 문헌

  1. Experimental study on wave forces to offshore support structures vol.60, pp.2, 2016, https://doi.org/10.12989/sem.2016.60.2.193
  2. Wave Force Characteristics of Large-Sized Offshore Wind Support Structures to Sea Levels and Wave Conditions vol.9, pp.9, 2014, https://doi.org/10.3390/app9091855