Numerical simulation of Added Resistance in Head waves: a RANS and BEM approach

Nowadays with the increase of the importance of the green aspect, related to fuel con- sumption, also engine emissions are an important issue to consider in ship design. From the hydrodynamic point of view, in addition to the well known ship resistance optimization, ship performance in waves should be taken into account not only in terms of safety and comfort due to motions, but also in terms of added resistance in waves. The aim of this article is to compare the evaluation of added resistance deriv- ing from the prediction of motions obtained from a three dimensional boundary element method based on Rankine sources with the corresponding added resistance results coming from a viscous method. In particular it is desired to overview on the ability of a RANSE solver on this particular field. The methods are applied considering only regular head waves for the test case, MOERI Container Ship (KCS).