Hydrodynamic analysis of oblate spheroids in harmonic water waves using the method of image singularities
Abstract
The present thesis strives to develop a semi-analytical solution for an immersed spheroid. In specifical, the diffraction and the radiation hydrodynamic problems are considered. The term “spheroid” refershere in to the oblate geometry of arbitrary eccentricity and to the axisymmetric configuration, where the axis of symmetry is perpendicular to the free surface. For each hydrodynamic problem, the oblate spheroid is fully submerged and placed firstly in a liquid field of infinite water depth and in the sequel in a liquid field of finite (fixed) water depth. The proposed numerical approach is based on the method of the Image Singularities System. This method provides explicit relations that express the oblate spheroidal harmonics, given in terms of the fundamental solutions of the Laplace equation. In the present investigation, the method of the Image Singularities System is employed in order to transform the underlying Green’s function into the relevant coordinate system and, consequent ...
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