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Wave drift force and moment in deep and shallow water
Citation Link: https://doi.org/10.15480/882.14958
Publikationstyp
Journal Article
Date Issued
2025-01-02
Sprache
English
TORE-DOI
Volume
13
Issue
1
Article Number
64
Citation
Journal of Marine Science and Engineering 13 (1): 64 (2025)
Publisher DOI
Scopus ID
Publisher
MDPI
To attain a low Energy Efficiency Design Index (EEDI), large ships possibly lack the necessary propulsion power to avoid stranding in case of strong adverse wind and wave conditions. To estimate this danger, here, the longitudinal and transverse drift force and the yaw drift moment caused by regular waves of arbitrary frequency and direction are computed using a 3-dimensional Rankine panel method. In many cases, drift forces are larger in shallow than in deep water. Therefore, the theory for computing drift force and moment is extended to shallow water. As published results for shallow water are lacking, the method is verified only for deep water by comparisons with results of model experiments and CFD computations for three ships. For one of them, the dependence of non-dimensional coefficients of longitudinal and transverse drift force and of the drift yaw moment on wave frequency, wave angle, water depth and ship speed is shown. The source files of the programs used for these computations may be obtained from the author if an adequate fee is donated to the Medecins Sans Frontieres or to the author.
Subjects
drift force | panel method | seakeeping | shallow water
DDC Class
623: Military Engineering and Marine Engineering
620.1: Engineering Mechanics and Materials Science
Publication version
publishedVersion
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Name
jmse-13-00064-v2.pdf
Type
Main Article
Size
1.26 MB
Format
Adobe PDF