Prediction of added resistance of ships in waves |
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Authors: | Shukui Liu George Zaraphonitis |
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Affiliation: | Ship Design Laboratory, National Technical University of Athens, Greece |
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Abstract: | The prediction of the added resistance of ships in waves is a demanding, quasi-second-order seakeeping problem of high practical interest. In the present paper, a well established frequency domain 3D panel method and a new hybrid time domain Rankine source-Green function method of NTUA-SDL are used to solve the basic seakeeping problem and to calculate first order velocity potentials and the Kochin functions, as necessary for the calculation of the added resistance by Maruo's far-field method. A wide range of case studies for different hull forms (slender and bulky) was used to validate the applicability and accuracy of the implemented methods in practice and important conclusions regarding the efficiency of the investigated methods are drawn. |
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Keywords: | Added resistance Drift forces Far-field method Near-field method 3D panel method Kochin function |
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