Numerical investigation of solitary wave action on two rectangular boxes with a narrow gap

NING Dezhi; SU Xiaojie; ZHAO Ming

doi:10.1007/s13131-016-0967-x

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Article Navigation > Acta Oceanologica Sinica > 2016 > 35(12): 89-99

NING Dezhi, SU Xiaojie, ZHAO Ming. Numerical investigation of solitary wave action on two rectangular boxes with a narrow gap[J]. Acta Oceanologica Sinica, 2016, 35(12): 89-99. doi: 10.1007/s13131-016-0967-x

Citation:

NING Dezhi, SU Xiaojie, ZHAO Ming. Numerical investigation of solitary wave action on two rectangular boxes with a narrow gap[J]. Acta Oceanologica Sinica, 2016, 35(12): 89-99. doi: 10.1007/s13131-016-0967-x

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Numerical investigation of solitary wave action on two rectangular boxes with a narrow gap

doi: 10.1007/s13131-016-0967-x

1.
State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China
2.
State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China;CCCC Tianjin Port and Waterway Prospection and Design Research Institute CO., LTD, Tianjin 300042, China
3.
School of Computing, Engineering and Mathematics, University of Western Sydney, Penrith, NSW 2751, Australia

Received Date: 2015-09-06
Rev Recd Date: 2015-10-15

Abstract

Abstract

Based on the time-domain higher-order boundary element method (HOBEM), a two-dimensional numerical wave flume is developed to investigate solitary wave interaction with two rectangular boxes with a narrow gap. In the numerical model, the fully nonlinear boundary conditions are satisfied on the free surface, the mixed Eulerian-Lagrangian method is adopted to track the transient water surface and the fourth-order Runga-Kutta method is used to predict the velocity potential and wave elevation on the free surface. The acceleration potential technique is used to compute the transient wave forces along the wetted object surface. A piston-type wavemaker is used to generate solitary waves. The proposed model is validated by comparing the simulated wave run-up and the wave loads with the published experimental and numerical results of the reflection of a solitary wave from a vertical wall. Then, numerical experiments are performed to study the effects of the narrow gap and the size of each box on the wave run-ups at the two sides of the two-box system and in the narrow gap between two boxes, and the wave loads on the two boxes. The interaction between double solitary waves with a time interval between them with a two-box system is also investigated.
- narrow gap,
- numerical wave flume,
- solitary wave,
- wave force,
- higher-order boundary element method

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References

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