Trans RINA, Vol 157, Part C1, Intl J Marine Design, Jan - Dec 2015


The sensitivity analysis shows that the influence of the hull surface roughness is well depicted by activating the module in the solver because it behaves as expected having a higher impact on the Cf


decreasing at higher Vs. The value of 150 µm could be chosen


therfore with Figure 14 –Bow Wave @10 kn– Perspective View.


considered to be the standard average roughness of a commercial new vessel.This


good da


confidence


at low speed and since it’s


s analysis does not predict the


overall ship resistance because the Caa, has not be en calculated. As a general practice the air drag is estimated on the basis of the transversal exposed superstructure area, and doesn’t strongly affect the total ship resistance. In this case though the supply vessel has a rather innovative superstructure shape an extra CFD analysis will be required po


to achieve a reliable Caa. Due to the Figure 15 –Bow Wave @12 kn– Perspective View.


odded propulsion system the course keeping could be improved by enlarging the skeg area. Few optimization studies have been perfomed on supply vessels’ most efficient hull shape and they all have shown that the crucial and viceversa a


pr resence of the bulb is not


standard hull with no bulbous bow cou ld decrease the overall resistance. The bow shape and its bulb represents the largest component of t the total drag and hence a review of the bow will be evaluated in the further work of the authors


3.6 INTERIOR DESIGN Figure 16 –Bow Wave @14 kn– Perspective View. 3.6 (a) Restaurant with integrated lounge


Figure 1


17 –Bow Wave @16 kn– Perspective View.


Figure 20: GAof restaurant w Figure 18 –Bow Wave @18 kn– Perspective View.


with integrated lounge


This concept is a Scandinavian minimali st interior, with the use of cream and light wooden floors. The layout is shown in Figure 20. There are four distinctive types of area, in the distance there is a serviced dining area for 40 pe


artition segregates this from the communal lounge seating and individual


Figure 19 –Bow Wave @20 kn– Perspective View. informal loungers in the middle


ground. The individual loungers have reed features to make them isolated from each other and the space. T he Communal informal lounge sofas have a recessed space and a table and overhead lighting identifying them as separate spaces and adding to the mood of the interior


© 2015: The Royal Institution of Naval Architects C-91


eople with integrated technology with the table for the user to interact with a menu and place an order. A pa


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