Chinese Journal of Ship Research, Volume. 19, Issue 5, 28(2024)

Nonlinear ship wave simulation using an automatic mesh generation method

Kaiyuan SHI1... Xiangrui ZHANG1,2, Haofeng TIAN1 and Renchuan ZHU1 |Show fewer author(s)
Author Affiliations
  • 1School of Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
  • 2Marine Design and Research Institute of China, Shanghai 200011, China
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    Objectives

    To simulate the complex nonlinear interactions between the free surface and instantaneous wetted hull surface during ship navigation, an automatic mesh generation method is proposed.

    Methods

    The method takes a whole-hull triangular mesh file as the input and automatically generates meshes for the instantaneously transforming free surface and wetted hull surface. It is able to handle arbitrary hullforms with complex bow and stern geometries while exhibiting strong robustness. Simulations of waves generated by a KCS hull at various speeds are then conducted using the proposed method.

    Results

    The predicted ship-side wave profiles, wave patterns around the hull, and wave-making resistance show good agreement with the experimental results. Moreover, at higher speeds, the simulated wave surface at the KCS stern consistently stays below the transom, exhibiting a dry transom characteristic.

    Conclusions

    The results demonstrate that the proposed method can accurately model nonlinear ship waves and has the potential to simulate the flow fields around transom-stern ships.

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    Kaiyuan SHI, Xiangrui ZHANG, Haofeng TIAN, Renchuan ZHU. Nonlinear ship wave simulation using an automatic mesh generation method[J]. Chinese Journal of Ship Research, 2024, 19(5): 28

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    Paper Information

    Category: Ship Design and Performance

    Received: Jul. 28, 2023

    Accepted: --

    Published Online: Mar. 14, 2025

    The Author Email:

    DOI:10.19693/j.issn.1673-3185.03481

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