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 Xi Zhang,Xiangyin Meng,Yunfei Du.Numerical Study of Effects of Complex Topography on Surface-Piercing Wave-Body Interactions[J].Journal of Marine Science and Application,2018,(4):550-563.[doi:10.1007/s11804-018-00057-3]
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Numerical Study of Effects of Complex Topography on Surface-Piercing Wave-Body Interactions


Numerical Study of Effects of Complex Topography on Surface-Piercing Wave-Body Interactions
Xi Zhang12 Xiangyin Meng3 Yunfei Du1
Xi Zhang12 Xiangyin Meng3 Yunfei Du1
1 National Supercomputer Center in Guangzhou, Sun Yat-Sen University, Guangzhou 510006, China;
2 School of Mathematics, Computer Science, and Engineering, City University of London, London EC1V 0HB, UK;
3 School of Marine Science and Technology, Newcastle University, Newcastle NE1 7RU, UK
Wave-body interactionsComplex topographyWave loadsRoll motionOpenFOAM
In this paper, wave-body interactions under the effects of complex topography are investigated numerically by a two-phase incompressible Reynolds-Averaged Navier-Stokes (RANS) solver in OpenFOAM. A submerged bottom-standing structure is distributed below the floating body, and the effects of the water depth and top width of the submerged structure on wave-body interactions are studied. The results show that the submerged structure can affect wave loads and roll motion. The vertical force can be amplified on the fixed body when the water depth of the submerged structure is smaller than half of the water depth of the body. The top width significantly affects the vertical force when the top width is smaller than the incident wave length and larger than the body width. For the free-rolling body, roll amplitude can be increased when the ratio of the incident wave length to the water depth of the submerged structure is large enough. On the resonance condition, roll amplitude is slightly reduced by the submerged structure. The effects of the top width on roll amplitude are remarkable when special conditions are fulfilled.


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Received date:2017-5-31;Accepted date:2018-5-5。
Corresponding author:Xi Zhang,xi.zhang@nscc-gz.cn
Last Update: 2019-03-05