船首バルブ付き高速ライナー船型(CB=0.56,L/B=7.0)に関する系統的模型試験第2報 : 船首横截面積曲線形状,船首バルブおよびC_P×C_Mの影響

概要

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No.1 Report of the Systematic Series Model Tests on High Speed Cargo Liners with Bulbous Bow dealt with the effect of l_<CB>, L/B, frame line and stern forms, and was published in 1969 in the Report of the Ship Research Institute. In No.2 Report are studied the effects of forebody sectional area curve, bulbous bow and midship section upon the propulsive performance of high speed cargo ships with C_B=0.56 and L/B=7.0. The principal results of the tests are as follows. 1) Slightly full shoulder and a litlle hollow entrance of the sectional area curve of the fore body gives a better propulsive performance for high speed cargo liner. Straight line entrance of the sectional area curve increase the resistance remarkably. 2) Bulbous bow decreases the resistance under the fully loaded condition and increase it under the ballast condition. This tendency becomes more remarkable with the increase of the bulb size. A proper bulb size should be chosen, taking into consideration the speed and the load condition. 3) There exists an optimum midship coefficient varying with the load condition and the ship speed.
独立行政法人海上技術安全研究所の論文
1969-04-30