The design approach started with a well known hydrodynamic bottle-nose dolphin geometry and some of its nose geometry was adapted to the bow of the ship. The optimization parameters consist of three vertices’ at the transom, and three at the bow so we could easily control the shape with a quadratic equation.
After performing nine simulation of all the scaled design combinations, the CFD results showed a winner. From first design to the last, total drag force was reduced by 9.5 %.
The final validation of the full scale ship is time consuming and demands computational power. To overcome this we performed the simulation on a web based HPC-cloud platform for automatic virtual towing tank analysis called LincoSim.
LincoSim deliver an easy and fast setup fine tuned for this kind of analysis, and the computational power makes sure you get your results on time. The results from the full scale CFD analysis show that the final design will generate around 857kN of drag force.