한국해양공학회지 (Journal of Ocean Engineering and Technology)

  • 제18권5호
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  • Pages.7-14
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  • 2004
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  • 1225-0767(pISSN)
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  • 2287-6715(eISSN)
한국해양공학회 (Korean Society of Ocean Engineers)
권호 표지

투과성 이중 원통구조물 배열에 의한 파랑제어

Wave Control by an Array of Porous Dual Cylindrical Structures

  • 조일형 (제주대학교 해양산업공학부)
  • 발행 : 2004.10.01
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초록

The interaction of incident manochromatic waves with an array of N surface-piercing porous dual cylindrical structures is investigated in the frame of three-dimensional linear potential theory. The dual cylindrical structure is camposed of concentric two cylinders. The exterior cylinder is porous and the interior cylinder is impermeable. The fluid domain is divided into N+1 regions i.e. a single exterior region and N interior regions. The diffraction potentials in each region representing the scattering of incident waves by an array of porous cylindrical structures are expressed by the Fourier Bessel series. The unknown coefficients in each region are determined by applying the porous boundary condition and continuity of mass flux at the matching boundary. It is found that an array of porous cylindrical structures reduces both the wave forces and the wave run-up, and shows the excellent performance of wave blocking. The results show that various types of breakwater exchanging seawater are prospective by controlling the porosity and the configuration of cylindrical structures.

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참고문헌

  1. 조일형 (2003). 'N개의 투과성 원기둥 배열에 의한 파랑제어', 한국해안.해양공학회지, 제15권, 제4호, pp 232-241
  2. Isaacson, M., Premasiri, S. and Yang, G. (1998). 'Wave Interactions with Vertical Slotted Barrier', J. Waterway, Port, Coastal and Ocean Engrg., Vol 124, pp 118-126 https://doi.org/10.1061/(ASCE)0733-950X(1998)124:3(118)
  3. Kim, M.H. (1993). 'Interaction of Waves with N Vertical Circular Cylinders', J. Waterway, Port, Coastal, and Ocean Eng. ASCE, Vol 119, pp 671-689 https://doi.org/10.1061/(ASCE)0733-950X(1993)119:6(671)
  4. Linton, C.M. and Evans, D.V. (1990). 'The Interaction of Waves with Arrays of Vertical Circular Cylinders', J. of Fluid Mech., Vol 215, pp 549-569 https://doi.org/10.1017/S0022112090002750
  5. MacCamy, RC. and Fuchs, R.A. (1954). 'Wave Forces on PRiles: A Diffraction Theory', Tech. Memo No 69, U.S. Army Corps of Engineers, Beach Erosion Board
  6. Maniar, H.D. and Newman. J.N. (1997). 'Wave Diffraction by a Long Array of Cylinders', J. Fluid Mech., Vol 339, pp 309-330 https://doi.org/10.1017/S0022112097005296
  7. McIver, P. (2002). 'Wave Interaction with Arrays of Structure', Applied Ocean Research, Vol 24, pp 121-126 https://doi.org/10.1016/S0141-1187(02)00034-2
  8. Ohkusu, M. (1974). 'Hydrodynamic Forces on Multiple Cylinders in Waves', Intl. Symp. on Dynamics of Marine Vehicles and Ocean Structures in Waves
  9. Yu, X. (1995). 'Diffraction of Water Waves by Porous Breakwaters', J. Waterway, Port, Coastal, and Ocean Eng. ASCE, Vol 121, pp 275-282 https://doi.org/10.1061/(ASCE)0733-950X(1995)121:6(275)
  10. Wang, K.H. and Ren, X. (1994). 'Wave Interaction Woth a Concentric Porous Cylinder System', Ocean Engineering Vol 21, pp 343-360 https://doi.org/10.1016/0029-8018(94)90009-4
  11. Williams, A.N. and Li, W. (2000). 'Water Wave Interaction with an Array of Bottom-Mounted Surface-Piercing Porous Cylinders', Ocean Engineenng Vol 27, pp 841-866 https://doi.org/10.1016/S0029-8018(99)00004-9