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 Razieh Zangeneh,Mahmood Ghiasi.A B-Spline Method Used to Calculate Added Resistance in Waves[J].Journal of Marine Science and Application,2017,(1):20-26.[doi:10.1007/s11804-017-1396-8]
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A B-Spline Method Used to Calculate Added Resistance in Waves


A B-Spline Method Used to Calculate Added Resistance in Waves
Razieh Zangeneh1 Mahmood Ghiasi2
Razieh Zangeneh1 Mahmood Ghiasi2
1. Department of Mechanical Eng., University of Maine, Orono, ME, USA;
2. Department of Marin Tech., AmirKabir University of Tech, Tehran, Iran
Added resistanceB-splineKochin functionMaruo’s far-field methodGauss-Legendre quadrature
Making an exact computation of added resistance in sea waves is of high interest due to the economic effects relating to ship design and operation. In this paper, a B-spline based method is developed for computation of added resistance. Based on the potential flow assumption, the velocity potential is computed using Green’s formula. The Kochin function is applied to compute added resistance using Maruo’s far-field method, the body surface is described by a B-spline curve and potentials and normal derivation of potentials are also described by B-spline basis functions and B-spline derivations. A collocation approach is applied for numerical computation, and integral equations are then evaluated by applying Gauss-Legendre quadrature. Computations are performed for a spheroid and different hull forms; results are validated by a comparison with experimental results. All results obtained with the present method show good agreement with experimental results.


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Received date:2016-06-09;Accepted date:2016-08-31。
Corresponding author:Razieh Zangeneh,Email:Razieh.Zangeneh1@maine.edu
Last Update: 2017-03-25