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Publications
Abbasnia, A., Ghaisi, M. and Guedes Soares, C. (2015), “Fully non-linear time domain simulation of 3D wave-body interaction by numerical wave tank”, Maritime Technology and Engineering, Guedes Soares, C. & Santos T.A. (Eds.), Taylor & Francis Group, London, UK, pp. 1019-1028
In this paper, an implicit numerical model has been developed to simulate freely-floating bodies in waves. A three dimensional numerical wave tank has been provided to keep open water condition. Hence, an artificial wave-maker is adopted on the upstream wall and artificial damping zones are spread on the free-surface behind rigid walls to dissipate wave reflection. Potential theory is used to describe flow field and boundary integral equation is applied to solve potential field in the Eulerian frame. Fully non-linear free-surface boundary conditions are implemented by mixed Eulerian-Lagrangian method and Runge-Kutta time integration. The Acceleration potential is used to evaluate the time derivatives of velocity potential implicitly. Wigley hull is chosen as a floating body moves freely. The present model is verified by other experimental data and numerical solutions. Time series of response of the body in non-linear regular wave is obtained.
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