Comparisons of the two numerical models of elliptic mild-slope equation for wave propagation in irregular coastal zones

Li Qiaosheng; Tang Jun; Lü Yigang

doi:10.3969/j.issn.0253-4193.2020.01.004

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Li Qiaosheng，Tang Jun，Lü Yigang. Comparisons of the two numerical models of elliptic mild-slope equation for wave propagation in irregular coastal zones[J]. Haiyang Xuebao，2020, 42(1)：31–39，doi:10.3969/j.issn.0253−4193.2020.01.004

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Comparisons of the two numerical models of elliptic mild-slope equation for wave propagation in irregular coastal zones

doi: 10.3969/j.issn.0253-4193.2020.01.004

1.
Suzhou Waterway Administration Office, Suzhou 215008, China
2.
State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116023, China
3.
Jiaxing City Traffic Engineering Quality and Safety Management Service Center, Jiaxing 314001, China

Received Date: 2018-11-14
Rev Recd Date: 2018-12-21

Available Online: 2021-04-21

Publish Date: 2020-01-25

Abstract

Abstract

In this paper, two numerical models of elliptic mild-slope equation for coastal wave propagation in coastal zones are compared and analyzed. The two numerical models are developed by using finite volume method respectively on adaptive quadtree mesh and triangular unstructured mesh. The numerical models are firstly used to simulate wave propagation and deformation on circle and elliptic shores, and the computational efficiencies are compared and analyzed based on the numerical results. The numerical results show that both of the two numerical models are effective in simulating coastal wave propagation and deformation. Compared with the numerical model on unstructured triangular mesh, the numerical model on quadtree mesh is more concise and easy for numerical implementation as it does not involve complex cross-terms due to model transformation in the process of numerical discretization. What’s more, the numerical model on quadtree mesh is more efficiency in saving computing time and storage space.
- wave,
- numerical simulation,
- elliptic mild-slope equation,
- quadtree grid,
- unstructured grid

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References(17)

References

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