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Numerical Study of Effects of Complex Topography on Surface-Piercing Wave-Body Interactions

Lookup NU author(s): Dr Xiangyin Meng

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Abstract

© 2018, Harbin Engineering University and Springer-Verlag GmbH Germany, part of Springer Nature. 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.

Publication metadata

Author(s): Zhang X, Meng X, Du Y

Publication type: Article

Publication status: Published

Journal: Journal of Marine Science and Application

Year: 2018

Volume: 17

Issue: 4

Pages: 550-563

Print publication date: 01/12/2018

Online publication date: 07/12/2020

Acceptance date: 05/05/2018

ISSN (print): 1671-9433

ISSN (electronic): 1993-5048

Publisher: Harbin Engineering University

URL: https://doi.org/10.1007/s11804-018-00057-3

DOI: 10.1007/s11804-018-00057-3

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