Solving Wave Interaction with a Floating Breakwater in Finite Water Depth Using Scaled Boundary FEM

Document Type : Research

Authors

1 School of civil engineering, college of engineering, University of Tehran, Tehran, Iran.

2 Assistant Professor, Faculty of Civil Engineering, Sahand University of Technology, Tabriz, Iran.

3 Professor of Offshore Engineering, Department of Naval Architecture, Ocean & Marine Engineering, University of Strathclyde, Scotland, United Kingdom.

4 Ph.D. of water resources, School of civil engineering, college of engineering, University of Tehran, Tehran, Iran.

Abstract

This study aims to develop an efficient and accurate analytical-numerical model to analyze full interaction between seawater waves and cylindrical floating breakwaters in an infinite fluid domain of finite arbitrary water depth. Based on potential flow assumption, a semi-analytical Scaled Boundary Finite Element Method (SBFEM) in a two-dimensional vertical plane has been used to solve governing Laplace equations. The final equation in the scaled boundary coordinate system has been homogenized by locating the scaling center within each sub-domain. Hence, a diversity of particular solutions are omitted, leading to a unified solution process for radiation/different modes and wave diffraction problems. The accuracy, generality and robustness of the proposed SBFEM model have been evaluated by comparing the results of the proposed model with the reported results from the literature. By implementing the current SBFEM model, simulation results for radiation and diffraction problems are highly accurate compared to the result of other solutions.

Keywords

References

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Numerical Methods in Civil Engineering
Volume 6, Issue 1
September 2021
Pages 42-49

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History

  • Receive Date: 04 May 2021
  • Revise Date: 23 June 2021
  • Accept Date: 03 July 2021

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