거위목 벌브의 길이에 따른 저항성능 변화 분석

초록

Bulbous bow is one of the important design factors on the design of fore-body hull form. Using the interference of ship waves, the bulbous bow could decrease the wave resistance of ship. Recently, goose neck bulb is applied mainly for high speed vessels like passenger ships and ferries etc.. Also, the goose neck bulb is applied for relatively high speed merchant vessels like container ships and LNG carriers. However, existing research papers about the goose neck bulb are not enough as for the data referring to the design of bow hull form. In this study, several designed goose neck bulbs (length is changed) have been numerically tested for the study of the design parameters of the goose neck bulb obtained resistance reduction. By comparing the pressure distributions on the hull surface and the wave systems near the bow, the causes of wave resistance reduction are discussed.