سال انتشار: ۱۳۹۱

محل انتشار: کنفرانس بین المللی مدل سازی غیر خطی و بهینه سازی

تعداد صفحات: ۷

نویسنده(ها):

Arash Abbasnia – PhD Candidate of Marine Technology Faculty of Amir Kabir University of Technology
Mahmoud Ghiasi – Assistance Professor of Marine Technology Faculty of Amir Kabir University of Technology
Seyed Mohammad Hossein Sharifi – Assistance Professor of Nautical Science Faculty of Petroleum University of Technology

چکیده:

In basic design of offshore or onshore structures, prediction of surface waves due to uniform motion of the floating body is essential to achieve an optimum body shape. Whereas, in the practical hydrodynamics, using of towing tanks is common and so cost and time consuming to conduct it, so a reliable numerical tank is interesting. A wide channel with constant depth constitutes computational domain. It assumes that fluid is incompressible and non-viscous and the flow is irrotational. Therefore, Laplace’s equation could describe flow field. 3D Boundary Element method based on second Green’s Identityis implemented to solve Laplace’s equation. Impermeable boundary condition is satisfied by Image method and Cauchy integral theorem and Poisson summation formula is used to determine Principle value integral. In this study, numerical simulation is conducted for a hemisphere and added mass and generated wave profile is presented