A fully nonlinear approach for efficient ship-wave simulation

This paper presents an efficient time-domain method for simulating nonlinear ship waves. The proposed method, implemented in an earth-fixed coordinate system, integrates a compact boundary element domain within a high-order spectral layer, enabling accurate modeling of both near-field and far-field...

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Bibliographic Details
Published inJournal of hydrodynamics. Series B Vol. 35; no. 6; pp. 1027 - 1040
Main Authors Shi, Kai-yuan, Zhu, Ren-chuan
Format Journal Article
LanguageEnglish
Published Singapore Springer Nature Singapore 01.12.2023
Subjects
Engineering
Engineering Fluid Dynamics
Hydrology/Water Resources
Numerical and Computational Physics
Simulation
spectral coupled method
potential flow
wave-making resistance
Fully nonlinear
ship wake
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Summary:This paper presents an efficient time-domain method for simulating nonlinear ship waves. The proposed method, implemented in an earth-fixed coordinate system, integrates a compact boundary element domain within a high-order spectral layer, enabling accurate modeling of both near-field and far-field ship waves. An overset mesh method and an attention mechanism are employed to track the moving ship. The effectiveness of the method is validated through simulations of Wigley and Series 60 ships sailing at various speeds. The numerical results, including the nonlinear wave run-up at the ship bow, surface pressure distribution on the hull, and the ship resistance, agree well with experimental data and published numerical results, confirming that the method is capable of accurately simulating the nonlinear ship waves.
ISSN:1001-6058
1878-0342
DOI:10.1007/s42241-024-0092-9