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A validation study on mathematical models of speed and frequency dependence in seakeeping

Du, S.X., Hudson, D.A., Price, W.G. and Temarel, P. (2000) A validation study on mathematical models of speed and frequency dependence in seakeeping Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 214, (1), pp. 181-202. (doi:10.1243/0954406001522903).

Record type: Article


An extensive theoretical validation exercise is presented into the speed and frequency dependent solutions associated with surface piercing vessels travelling in waves. The basis of the study lies in the formulation of the Green's function satisfying the traditionally posed linearized boundary value problem of an oscillating ship with forward speed and the development/implementation of appropriate numerical schemes of study for solution. Two widely different mathematical models in formulation and numerical algorithm, denoted as methods A and B, are discussed and employed to predict hydrodynamic coefficients, wave loads and responses of a Series 60 form and an NPL monohull. Only a selection of results are shown, but great care was taken in the overall investigation to verify and validate intermediate steps within the separate calculation procedures as well as to compare final predicted values. The extensive qualitative and quantitative agreement of comparable results from methods A and B provides a measure of confidence that the presented findings are solutions to the posed seakeeping problem. The influence of speed and frequency dependence within the context of this study are discussed as well as a preliminary study into their influence in the occurrence of irregular frequencies in the numerical schemes

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Published date: 2000
Keywords: validation, hydrodynamics, speed dependent green's function, seakeeping, series 60, npl hull form


Local EPrints ID: 21528
ISSN: 0954-4062
PURE UUID: 4efcf9ae-4910-4b88-ac76-02239f9f6373
ORCID for D.A. Hudson: ORCID iD
ORCID for P. Temarel: ORCID iD

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Date deposited: 06 Feb 2007
Last modified: 17 Jul 2017 16:26

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Author: S.X. Du
Author: D.A. Hudson ORCID iD
Author: W.G. Price
Author: P. Temarel ORCID iD

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