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http://dx.doi.org/10.5394/KINPR.2004.28.3.199

A Study on the Radiation Forces Acting on a Submerged-Plate  

Lee, Sang-Min (Dept. of Ship Operation Systems Engineering, Korea Maritime University)
Kong, Gil-Young (Dept. of Ship Operation Systems Engineering, Korea Maritime University)
Kim, Chol-Seong (Div. of Maritime Transportation System, Mokpo National University)
Abstract
We have developed a composite grid method for the solution of the radiation problem We divide the domain into two different grids; one is a moving grid system and the other is a fixed grid system. This numerical method is applied to calculation of the radiation forces generated by the submerged plate oscillating near a free surface. The experimental data are compared with the numerical ones obtained by the present method and a linear potential theory. As a result, we can confirm the accuracy of the present method. Finally, Lie have evaluated the effect of nonlinear and viscous damping on the hydrodynamic forces acting on the submerged plate.
Keywords
Composite grid method; Submerged-plate; Radiation force; Viscous damping force; Free surface effect;
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