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Research Papers: Ocean Engineering

Computation of Motion and Added Wave Resistance With the Panel-Free Method

[+] Author and Article Information
Hongxuan (Heather) Peng

Faculty of Engineering and Applied Science,
Memorial University of Newfoundland,
St. John's, NL A1B 3X5, Canada

Wei Qiu

Faculty of Engineering and Applied Science,
Memorial University of Newfoundland,
St. John's, NL A1B 3X5, Canada
e-mail: qiuw@mun.ca

1Corresponding author.

Contributed by the Ocean, Offshore, and Arctic Engineering Division of ASME for publication in the JOURNAL OF OFFSHORE MECHANICS AND ARCTIC ENGINEERING. Manuscript received July 16, 2012; final manuscript received May 22, 2014; published online June 19, 2014. Assoc. Editor: Rene Huijsmans.

J. Offshore Mech. Arct. Eng 136(3), 031103 (Jun 19, 2014) (9 pages) Paper No: OMAE-12-1070; doi: 10.1115/1.4027788 History: Received July 16, 2012; Revised May 22, 2014

Computations have been performed to predict motions and added wave resistances for ships at forward speeds. The radiation and diffraction problems of a ship with forward speed are solved with the panel-free method in the frequency domain. In this paper, the effect of the m-terms and forward-speed/zero-speed Green functions (GFs) on the solutions are investigated using two Wigley hull ships. Computed motions, hydrodynamic coefficients, and added wave resistances were compared with the experimental data.

Copyright © 2014 by ASME
Topics: Waves , Computation , Ships , Damping , Hull
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References

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Figures

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Fig. 1

Heave and pitch of Wigley I at Fn = 0.2

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Fig. 2

Heave and pitch of Wigley I at Fn = 0.3

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Fig. 3

Heave and pitch of Wigley I at Fn = 0.4

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Fig. 4

Heave and pitch of Wigley III at Fn = 0.2

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Fig. 5

Heave and pitch of Wigley III at Fn = 0.3

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Fig. 6

Heave and pitch of Wigley III at Fn = 0.4

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Fig. 7

Heave added mass and damping of Wigley I at Fn = 0.2

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Fig. 8

Pitch added mass and damping of Wigley I at Fn = 0.2

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Fig. 9

Heave added mass and damping of Wigley I at Fn = 0.3

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Fig. 10

Pitch added mass and damping of Wigley I at Fn = 0.3

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Fig. 11

Heave added mass and damping of Wigley I at Fn = 0.4

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Fig. 12

Pitch added mass and damping of Wigley I at Fn = 0.4

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Fig. 13

Heave added mass and damping of Wigley III at Fn = 0.2

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Fig. 14

Pitch added mass and damping of Wigley III at Fn = 0.2

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Fig. 15

Heave added mass and damping of Wigley III at Fn = 0.3

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Fig. 16

Pitch added mass and damping of Wigley III at Fn = 0.3

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Fig. 17

Heave added mass and damping of Wigley III at Fn = 0.4

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Fig. 18

Pitch added mass and damping of Wigley III at Fn = 0.4

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Fig. 19

Added wave resistances of Wigley I and III at Fn = 0.2

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Fig. 20

Added wave resistances of Wigley I and III at Fn = 0.3

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Fig. 21

Added wave resistances of Wigley I and III at Fn = 0.4

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