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Title: バルジによる漁船の船型改良について
Other Titles: Improvement of Hull Form of Fishing Vessel by Suitable Bulge
Authors: 川島, 敏彦1 Browse this author
芳村, 康男2 Browse this author →KAKEN DB
鈴木, 四郎3 Browse this author
大本, 耕司4 Browse this author
Authors(alt): Kawashima, Toshihiko1
Yoshimura, Yasuo2
Suzuki, Shiro3
Oomoto, Kouji4
Issue Date: 2003
Publisher: 日本造船学会
Journal Title: 日本造船学会論文集
Volume: 193
Start Page: 1
End Page: 9
Abstract: Fishing boats have several restrictions on their machinery arrangements and space utility on deck. For the improvement of the stability and the deck utility, the fitting of a bulge on sidewall of the vessel is one of the solutions. However, the bulge generally makes a significant increase of hull resistance and loss of speed. At the principal design stage of the elongation of the fisheries research ship “Ushio-maru”, the University of Hokkaido, the authors examined the suitable form of the bulge to improve the stability without increase of the hull resistance. For this purpose, systematic calculations of wave making resistance by Rankine’s source method and model experiments using a circulating water channel have been conducted. In this process, it has been found that the optimized bulge form can decrease the hull resistance. In this paper, the authors discuss about the mechanism of the hull resistance decrease by a bulge based on the view point of flow field around hull and propose the suitable method to design the bulge form. This technique has been applied to the actual elongation design of “Ushio-maru”, and then it has been confirmed by the experimental model tests as well as the full scale trials.
Type: article (author version)
Appears in Collections:水産科学院・水産科学研究院 (Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 芳村 康男

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