Hydrodynamic Interactions Between Multiple Ships Advancing Parallel in Close Proximity in Waves

XU Yong; DONG Wen-cai

doi:10.3879/j.issn.1000-0887.2014.04.005

Volume 35 Issue 4

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XU Yong, DONG Wen-cai. Hydrodynamic Interactions Between Multiple Ships Advancing Parallel in Close Proximity in Waves[J]. Applied Mathematics and Mechanics, 2014, 35(4): 389-400. doi: 10.3879/j.issn.1000-0887.2014.04.005

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Hydrodynamic Interactions Between Multiple Ships Advancing Parallel in Close Proximity in Waves

doi: 10.3879/j.issn.1000-0887.2014.04.005

Department of Naval Architecture, Naval University of Engineering, Wuhan 430033, P.R.China

Funds: The National Natural Science Foundation of China（50879090）

Received Date: 2013-10-08
Rev Recd Date: 2014-03-13
Publish Date: 2014-04-15

Abstract

Abstract

A three-dimensional frequency-domain calculation model based on the potential flow theory and multi-body dynamics theory was developed to investigate wave loads and free motions of multiple closely-spaced, hydrodynamically interacting ships advancing parallel in waves. In order to consider the speed effects on free surface in the gaps between these ship bodies, the translating-pulsating source Green’s function was chosen to simulate the radiation and diffraction waves. The model was validated through solving of the hydrodynamic terms and free motions of two parallel closely-arranged ship models advancing at zero or positive forward speeds in regular waves. Numerical results were also presented in the case of three parallel ships. Comparison of the dynamic behaviors between the two-ship case and three-ship case shows that in the two cases hydrodynamic interaction effects are quite different. The presented model is useful to predict wave loads and free motions of multiple vessels in underway replenishment on the sea.
- hydrodynamic interaction,
- multiple ships,
- wave loads,
- free motions,
- translating-pulsating source

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References(20)

References

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