Journal of Ocean Engineering and Technology (한국해양공학회지)

Korean Society of Ocean Engineers (한국해양공학회)
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3D Characteristics of Dynamic Response of Seabed around Submerged Breakwater Due to Wave Loading

파랑하중에 의한 잠제 주변 해저지반의 3차원 동적응답 특성

  • Hur, Dong-Soo (Department of Ocean Civil Engineering, Gyeongsang National University) ;
  • Park, Jong-Ryul (Technology R&D Institute, Hyein E&C Co. Ltd.) ;
  • Lee, Woo-Dong (The Institute of Marine Industry, Gyeongsang National University)
  • 허동수 (국립경상대학교 해양과학대학 해양토목공학과) ;
  • 박종률 (혜인E&C 기술연구소) ;
  • 이우동 (국립경상대학교 해양산업연구소)
  • Received : 2014.03.07
  • Accepted : 2014.07.23
  • Published : 2014.08.30
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Abstract

We analyzed the 3-D characteristics of the dynamic response of seabed around a submerged breakwater due to wave loading using a 3-D numerical scheme (LES-WASS-3D). Using our model, which considers the wave-structure-sandy seabed interactions in a 3-D wave field, we were able to investigate the 3-D characteristics of the pore-water pressure in the seabed around the submerged breakwater under various incident wave conditions. To verify the 3-D numerical analysis method suggested in this study, we compared the numerical results with the existing experimental results and found good agreement between them. The numerical analysis reveals that high pore-water pressure in the seabed is generated below a large wave height at the front slope of the submerged breakwater. It was also shown that the non-dimensional pore-water pressure in the seabed increases as the wave period increases because the wave energy dissipation decreases on the submerged breakwater and seabed as the wave period increases.

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References

  1. Hur, D.S., Kim, C.H., Kim, D.S., Yoon, J.S., 2008. Simulation of the Nonlinear Dynamic Interactions Between Waves, a Submerged Breakwater and the Seabed. Ocean Engineering, 35, 511-522. https://doi.org/10.1016/j.oceaneng.2007.12.002
  2. Hur, D.S., Kim, C.H, Yoon, J.S., 2010. Numerical Study on the Interaction Smong Nonlinear Wave, Composite Breakwater and Ssandy Seabed, Coastal Engineering, 57, 917-930. https://doi.org/10.1016/j.coastaleng.2010.05.010
  3. Hur, D.S., Lee, W.D, Cho, W.C., 2012. Three-dimensional Flow Characteristics around Permeable Submerged Breakwaters with Open Inlet. Ocean Engineering, 44, 100-116. https://doi.org/10.1016/j.oceaneng.2012.01.029
  4. Jeng, D.S., 1997. Wave-induced Seabed Instability in front of a Breakwater. Ocean Engineering, 24, 887-917. https://doi.org/10.1016/S0029-8018(96)00046-7
  5. Jeng, D.S., 2001. Mechanism of the Wave-induced Seabed Instability in the Vicinity of a Breakwater: a Review. Ocean Engineering, 28, 537-570. https://doi.org/10.1016/S0029-8018(00)00013-5
  6. Jeng, D.S., Li, J., 2008. Response of Porous Seabed around Breakwater Heads. Ocean Engineering, 35, 864-886. https://doi.org/10.1016/j.oceaneng.2008.01.021
  7. Jiang, Q.S., Takahashi, Y., Murakami, M, Isobe, M., 2000. A VOF-FEM Model for the Interaction among Wave, Soils and Structure. JSCE, Proceedins of Coastal Engineering, 47, 51-55. https://doi.org/10.2208/proce1989.47.51
  8. Mizutani, N., Mostafa, A.M, Iwata, K., 1998. Nonlinear Regular Wave, Submerged Breakwater and Seabed Dynamic Interaction. Coastal Engineering, 33, 177-202. https://doi.org/10.1016/S0378-3839(98)00008-8
  9. Smagorinsky, J., 1963. General Circulation Experiments with the Primitive Equation. Monthly weather review, 91(3), 99-164. https://doi.org/10.1175/1520-0493(1963)091<0099:GCEWTP>2.3.CO;2

Cited by

  1. 3-D Dynamic Response Characteristics of Seabed around Composite Breakwater in Relation to Wave-Structure-Soil Interaction vol.30, pp.6, 2016, https://doi.org/10.5574/KSOE.2016.30.6.505