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Article

A Body-Nonlinear Green’s Function Method with Viscous Dissipation Effects for Large-Amplitude Roll of Floating Bodies

1
College of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, China
2
School of Engineering and Mathematical Sciences, City University London, London EC1V 0HB, UK
*
Author to whom correspondence should be addressed.
Appl. Sci. 2018, 8(4), 517; https://doi.org/10.3390/app8040517
Received: 26 February 2018 / Revised: 22 March 2018 / Accepted: 24 March 2018 / Published: 28 March 2018
A novel time-domain body-nonlinear Green’s function method is developed for evaluating large-amplitude roll damping of two-dimensional floating bodies with consideration of viscous dissipation effects. In the method, the instantaneous wetted surface of floating bodies is accurately considered, and the viscous dissipation effects are taken into account based on the “fairly perfect fluid” model. As compared to the method based on the existing inviscid body-nonlinear Green’s function, the newly proposed method can give a more accurate damping coefficient of floating bodies rolling on the free surface with large amplitudes according to the numerical tests and comparison with experimental data for a few cases related to ship hull sections with bilge keels. View Full-Text
Keywords: Green’s function; viscous dissipation effects; roll damping; bilge keel; large amplitude Green’s function; viscous dissipation effects; roll damping; bilge keel; large amplitude
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MDPI and ACS Style

Guo, Z.; Ma, Q.; Yu, S.; Qin, H. A Body-Nonlinear Green’s Function Method with Viscous Dissipation Effects for Large-Amplitude Roll of Floating Bodies. Appl. Sci. 2018, 8, 517. https://doi.org/10.3390/app8040517

AMA Style

Guo Z, Ma Q, Yu S, Qin H. A Body-Nonlinear Green’s Function Method with Viscous Dissipation Effects for Large-Amplitude Roll of Floating Bodies. Applied Sciences. 2018; 8(4):517. https://doi.org/10.3390/app8040517

Chicago/Turabian Style

Guo, Zhiqun, Qingwei Ma, Shuangrui Yu, and Hongde Qin. 2018. "A Body-Nonlinear Green’s Function Method with Viscous Dissipation Effects for Large-Amplitude Roll of Floating Bodies" Applied Sciences 8, no. 4: 517. https://doi.org/10.3390/app8040517

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