Regular wave integral approach to the prediction of hydrodynamic performance of submerged spheroid

A free surface Green function method is employed in numerical simulations of hydrodynamic performance of a submerged spheroid in a fluid of infinite depth. The free surface Green function consists of the Rankine source potential and a singular wave integral. The singularity of the wave integral is removed with the use of the Havelock regular wave integral. The finite boundary element method is applied in the discretisation of the fluid motion problem so that the panel integral of the Rankine source potential is evaluated by the Hess-Smith formula and the panel integral of the regular wave integral is evaluated in a straightforward way due to the regularity nature. Present method's results are in good agreement with earlier numerical results.