Optimisation Studies

A full series of optimisation studies have been performed at Istanbul Technical University and the Maritime Research Institute Netherlands (MARIN).
A tank test session was carried out at Istanbul Technical University, during which the hull form was optimised in order to minimise resistance and to verify power predictions. A 1:12,5 model of the vessel was made specifically for this purpose.
MARIN, meanwhile, performed a sea-keeping assessment to obtain an impression of the hydrodynamic characteristics of the vessel and its performance in terms of speed loss and passenger comfort. During the assessment, the vessel was exposed to a wide range of wave conditions to determine how it would respond with regard to ship’s motions.



The assessment provided detailed data on detail such as onboard comfort, crew performance, fin performance and speed. In addition, it provided information about the vessel’s behaviour at anchor, opening the way for further optimisation of its rolling characteristics.
The detailed results achieved by tank test are as follows :		  


* Economic speed is found to be about 13.2 knots for half load condition.
* The bulb gives better resistance characteristics than the hull without it.
* New and more suitable streamlined locations have been found for the bilge keels.
* From the dye tests as well the computational studies, the location of the bow thrusters opening is found to be suitable.
* The power for fully and half loaded hull have been found to meet requirements which verifies the choice of the right engines.



The design and tank tests showed a very successful and elegant solution and this is why with permission of Jasmin Marine A.S. (The owner company) another order was placed by Bradford Marine to RMK Shipyard of the same design as a sister ship to Jasmin.