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Numerical study on steady wave drift forces of an obliquely moving ship
Citation Link: https://doi.org/10.15480/882.3329
Publikationstyp
Conference Paper
Date Issued
2019-09
Sprache
English
Author(s)
Herausgeber*innen
TORE-DOI
TORE-URI
Article Number
20
Citation
11th International Workshop on Ship and Marine Hydrodynamics (IWSH2019), Paper 20
Contribution to Conference
This paper considers numerical computation of the steady wave drift forces acting on an obliquely moving ship. The traditional forward speed seakeeping problem was extended to consider the ship with a drift angle. A computer code was developed based on a time domain Rankine panel method. Once the velocity potential around the hull was determined, the first order wave induced motions were calculated and then the second order wave drift forces were evaluated using a near field method. Based on the developed code, the longitudinal and transverse steady wave drift force, as well as the steady yaw moment were computed for a container ship in head and beam waves. The effects of the drift angle on the steady wave drift forces were included and discussed. The numerical results were compared with the published experimental measurements, which shows fairly good agreement.
Subjects
Drift angle
Obliquely moving ship
Rankine panel method
Second order wave effect
Wave drift force
DDC Class
600: Technik
620: Ingenieurwissenschaften
More Funding Information
This study was supported by the National Natural Science Foundation of China (Grant no. 51809278) and the Fundamental Research Funds for the Central Universities of China (Grant No. 17CX02012A), to which the first author is most grateful.
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