International Journal of Naval Architecture and Ocean Engineering

The Society of Naval Architects of Korea (대한조선학회)
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Hydrodynamic analysis of a floating body with an open chamber using a 2D fully nonlinear numerical wave tank

  • Uzair, Ahmed Syed (School of Naval Architecture and Ocean Engineering, University of Ulsan) ;
  • Koo, Weon-Cheol (School of Naval Architecture and Ocean Engineering, University of Ulsan)
  • Published : 2012.09.30
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Abstract

Hydrodynamic analysis of a surface-piercing body with an open chamber was performed with incident regular waves and forced-heaving body motions. The floating body was simulated in the time domain using a 2D fully nonlinear numerical wave tank (NWT) technique based on potential theory. This paper focuses on the hydrodynamic behavior of the free surfaces inside the chamber for various input conditions, including a two-input system: both incident wave profiles and forced body velocities were implemented in order to calculate the maximum surface elevations for the respective inputs and evaluate their interactions. An appropriate equivalent linear or quadratic viscous damping coefficient, which was selected from experimental data, was employed on the free surface boundary inside the chamber to account for the viscous energy loss on the system. Then a comprehensive parametric study was performed to investigate the nonlinear behavior of the wave-body interaction.

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References

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Cited by

  1. On damping of two-dimensional piston-mode sloshing in a rectangular moonpool under forced heave motions vol.772, pp.1469-7645, 2015, https://doi.org/10.1017/jfm.2015.234