The suggestion of a practical methodology for determining the optimum position of the flow control fin on a ship

Abstract

In this study, the advanced methodology for finding the optimal position of the flow control fin (FCF) on a hull was proposed. The traditional method for the FCF design required the designer's empirical knowledge and a lot of computational time and cost for the verification of performance on FCF. To suggest the alternative, firstly, the numerical simulation results of the bare hull was analyzed to find the optimal position of the FCF. In this study, two types of FCF were proposed for two different objectives, which are the resistance reduction and wake quality improvement. Especially the flow angle around hull and pressure distribution on a hull surface give us an important clue for this study. By applying the proposed methodology on various ship types such as tankers and containers, it is verified that it would be inductively applicable to the FCF design process.