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Numerical study on added resistance of ships by using a time-domain Rankine panel method

Cited 69 time in Web of Science Cited 92 time in Scopus
Authors
Kim, Kyong-Hwan; Kim, Yonghwan
Issue Date
2011-09
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
OCEAN ENGINEERING; Vol.38 13; 1357-1367
Keywords
Added resistanceRankine panel methodUncertainty in added resistanceTime-domain analysis
Abstract
This paper considers the numerical computation of added resistance on ships. As a method of solution, a higher-order Rankine panel method is applied in time domain. Furthermore, two different formulations, Neumann-Kelvin and double-body linearizations, are applied to investigate the difference between computational results. The quantities of added resistance are obtained by integrating the second-order pressure on the body surface. Computational results are validated by comparing with experimental data and other computational results on several models, and fair agreements are found for all the models. The components of added resistance are observed with regard to integral terms, radiation and diffraction components. This study continues to the computation of added resistance in irregular waves. This kind of computational approach can provide some important information to understand the uncertainty level of towing-tank measurement of added resistance. In this study, a series of long numerical simulations are carried out, and their statistical variations are observed for different time windows. Based on this observation, an appropriate criterion and averaging method are proposed for the prediction of added resistance in irregular waves. (C) 2011 Elsevier Ltd. All rights reserved.
ISSN
0029-8018
Language
English
URI
http://hdl.handle.net/10371/75093
DOI
https://doi.org/10.1016/j.oceaneng.2011.04.008
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Naval Architecture and Ocean Engineering (조선해양공학과)Journal Papers (저널논문_조선해양공학과)
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