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Numerical simulations of 2-D floating body driven by regular waves

Authors
  • Chen, Xue-bin1
  • Zhan, Jie-min1
  • Chen, Qin2
  • 1 Sun Yat-sen University, Department of Applied Mechanics and Engineering, Guangzhou, 510275, China , Guangzhou (China)
  • 2 Louisiana State University, Department of Civil and Environmental Engineering, Center for Computation and Technology, Baton Rouge, LA, USA , Baton Rouge (United States)
Type
Published Article
Journal
Journal of Hydrodynamics
Publisher
Springer Singapore
Publication Date
Oct 01, 2016
Volume
28
Issue
5
Pages
821–831
Identifiers
DOI: 10.1016/S1001-6058(16)60682-0
Source
Springer Nature
Keywords
License
Yellow

Abstract

An improved meshing method based on Fluent is used to update the computational meshes in solving the Navier-Stokes (N-S) equations for viscous and incompressible free surface flows with the volume of fluid (VOF) method. To maintain the mesh quality when updating meshes for a moving structure, the computational domain is separated into several parts and each part corresponds to a specific type of body motion. The numerical results of the interaction between the floating body and the regular waves agree well with the experimental data. A total of eight typical motion types are simulated separately to understand the correlation between the motion types and the wave transmission as well as the forces acting on the floating body. Numerical experiments show that the wave transmission increases in the case of sway and heave motions and decreases in the case of pitch motion as compared with the stationary case. It is also found that the sway motion reduces the horizontal wave force acting on the floating body, while the heave motion enhances the vertical wave force.

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