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Hydrodynamic characteristics of a fixed semi-submersible platform interacting with incident waves by fully nonlinear method

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초록

Based on the potential flow theory, a fully nonlinear numerical procedure is developed with boundary element method to analyze the interaction between a fixed semi-submersible platform and incident waves in open water. The incident wave is separated from the scattered wave under fully nonlinear boundary conditions. The mixed Euler-Lagrangian method is used to capture the position of the disturbed wave surface in local coordinate systems. The wave forces exerted on an inverted conical frustum are used to ensure the accuracy of the present method and good agreements with published results are obtained. The hydrodynamic characteristics of the semi-submersible platform interacting with regular waves are analyzed. Pressure distribution with time and space, tension and compression of the platform under wave action are investigated. 3D behaviors of wave run-ups are predicted. Strong nonlinear phenomena such as wave upwelling and wave interference are observed and analyzed.

Abstract

Based on the potential flow theory, a fully nonlinear numerical procedure is developed with boundary element method to analyze the interaction between a fixed semi-submersible platform and incident waves in open water. The incident wave is separated from the scattered wave under fully nonlinear boundary conditions. The mixed Euler-Lagrangian method is used to capture the position of the disturbed wave surface in local coordinate systems. The wave forces exerted on an inverted conical frustum are used to ensure the accuracy of the present method and good agreements with published results are obtained. The hydrodynamic characteristics of the semi-submersible platform interacting with regular waves are analyzed. Pressure distribution with time and space, tension and compression of the platform under wave action are investigated. 3D behaviors of wave run-ups are predicted. Strong nonlinear phenomena such as wave upwelling and wave interference are observed and analyzed.

참고문헌 (32)

  1. Abbasnia, A., "Fully nonlinear wave interaction with an array of truncated barriers in three dimensional numerical wave tank", Eng. Anal. Bound. Elem, 58, pp.79~85 (2015)[DOI]
  2. Abbasnia, A., "Fully nonlinear simulation of wave interaction with a cylindrical wave energy converter in a numerical wave tank", Ocean Eng, 152, pp.210~222 (2018)[DOI]
  3. Bai, W., "Fully nonlinear analysis of neartrapping phenomenon around an array of cylinders", Appl. Ocean Res, 44, pp.71~81 (2014)[DOI]
  4. Chatjigeorgiou, I. K., "Hydrodynamics and near trapping effects in arrays of multiple elliptical cylinders inwaves", Ocean Eng, 157, pp.121~139 (2018)[DOI]
  5. Chen, M., "Experimental study of forces on a multicolumn floating platform in internal solitary waves", Appl. Ocean Res, 78, pp.192~200 (2018)[DOI]
  6. Cong, P., "A novel solution to the second-order wave radiation force on an oscillating truncated cylinder based on the application of control surfaces", Ocean Eng, 204 (2020)[DOI]
  7. Dombre, E., "A 3d parallel boundary element method on unstructured triangular grids for fully nonlinear wave-body interactions", Ocean Eng, 171, pp.505~518 (2019)[DOI]
  8. Ferrant, P., "Simulation of strongly nonlinear wave generation and wave-body interactions using a fully nonlinear MEL model", 21st ONR Symposium on Naval Hydrodynamics (1996)
  9. Ferrant, P., "Fully nonlinear interactions of long-crested wave packets with a three-dimensional body", Proc. 22nd ONR Symposium on Naval Hydrodynamics, pp.403~415 (1998)
  10. Gonçalves, R. T., "Experimental study on vortex-induced motions of a semi-submersible platform with four square columns, part iii: effects of the collinear irregular and regular wave incidence and current", Ocean Eng, 217 (2020)[DOI]
  11. Huseby, M., "An experimental investigation of higher-harmonic wave forces on a vertical cylinder", J. Fluid Mech, 414, pp.75~103 (2000)[DOI]
  12. Ji, X., "Multi-directional random wave interaction with an array of cylinders", Ocean. Eng, 110, pp.62~77 (2015)[DOI]
  13. Liang, H., "A new multi-domain method based on an analytical control surface for linear and second-order mean drift wave loads on floating bodies", J. Comput. Phys, 347, pp.506~532 (2017)[DOI]
  14. Longuet-Higgins, M. S., "The deformation of steep surface waves on water. ii. growth of normal-mode instabilities", Proc. Roy. Soc. A, 364, pp.1~28 (1978)[DOI]
  15. Lu, W., "Linearity and nonlinearity in wave run-up and air-gap response for a semi- submersible platform under irregular wave excitation", Appl. Ocean Res, 104 (2020)[DOI]
  16. Ohkusu, M., "On the heaving motion of two circular cylinders on the surface of a fluid", Rep. Res. Inst. Appl. Mech. XVII, 58, pp.167~185 (1969)
  17. Ohl, C. O. G., "Water wave diffraction by a cylinder array. Part 1. Regular waves", J. Fluid Mech, 442, pp.1~32 (2001)[DOI]
  18. Servan-Camas, B., "A time-domain second-order fem model for the wave diffraction radiation problem. validation with a semisubmersible platform", Mar. Struct, 58, pp.278~300 (2018)[DOI]
  19. Sun, S. L., "Oblique water entry of a cone by a fully three-dimensional nonlinear method", J. Fluid Struct, 42, pp.313~332 (2013)[DOI]
  20. Sun, S. L., "On the fully nonlinear water entry of a cone in Stokes wave", Eng. Anal. Bound. Elem, 98, pp.232~242 (2019)[DOI]
  21. Swan, C., "Observations of wave-structure interaction for a multi-legged concrete platform", Appl. Ocean Res, 19, pp.5~6 (1997)[DOI]
  22. Sweetman, B., "Airgap prediction from secondorder diffraction and Stokes theory", Int. J. Offshore Polar Eng, 12, pp.184~188 (2002)[DOI]
  23. Wang, C. Z., "Interactions between fully nonlinear water waves and cylinder arrays in a wave tank", Ocean Eng, 37, pp.400~417 (2010)[DOI]
  24. Wang, C., "Elastic mesh technique for 3d bim simulation with an application to underwater explosion bubble dynamics", Comput. Fluid, 32, pp.1195~1212 (2003)[DOI]
  25. Wang, C. Z., "Finite element analysis of nonlinear wave resonance by multiple cylinders in vertical motions", Comput. Fluid, 88, pp.557~568 (2013)[DOI]
  26. Wang, X., "A numerical and experimental study of internal solitary wave loads on semi-submersible platforms", Ocean Eng, 150, pp.298~308 (2018)[DOI]
  27. Wolgamot, H. A., "Effects of second-order hydrodynamics on the efficiency of a wave energy array", Int. J. Mar. Energy, 15, pp.85~99 (2016)[DOI]
  28. Wu, G. X., "Numerical simulation and experimental study of water entry of a wedge in free fall motion", J. Fluid Struct, 19, pp.277~289 (2004)[DOI]
  29. Yang, Y. F., "Finite element analysis of second order wave resonance by multiple cylinders in a uniform current", Appl. Ocean Res, 100 (2020)[DOI]
  30. Zhang, X., "Global motion and airgap computations for semi-submersible floating production unit in waves", Ocean Eng, 141, pp.176~204 (2017)[DOI]
  31. Zhou, B. Z., "Fully nonlinear wave interaction with freely floating non-wall-sided structures", Eng. Anal. Bound. Elem, 50, pp.117~132 (2015)[DOI]
  32. Zhou, B. Z., "Interactions of fully nonlinear solitary wave with a freely floating vertical cylinder", Eng. Anal. Bound. Elem, 69, pp.119~131 (2016)[DOI]

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