オッターボードの研究 : 多翼型オッターボードの性能について

今井 健彦; 小山 重美

タイトル	ja オッターボードの研究 : 多翼型オッターボードの性能について
その他のタイトル	Studies on the Otter Board, Performance of the Multi-plane Otter Board オッターボードノケンキュウ : タヨクガタオッターボードノセイノウニツイテ
作成者	今井, 健彦 NRID 1000020041709 小山, 重美
主題	NDC 660
内容注記	Other Studies on midwater otter boards which are mainly composed of Wing board (Larsson’s Phantom trawl), Dualfin board (British Columbian trawl), Hydrofoil otter board (Süberkrüb) and Bie-plane otter board (Kobayashi), are comparatively recent development. This paper deals with the performance of multi-plane otter board, whose structure is similar to that of a paravane-shearing-board. The model experiments were carried out on sea and at circular tank. The model was made with galvanized iron-plate (0.48 mm in thickness), dimension of the model being 23.4 cm in length, 21.7 cm in width, and 225 g in weight, respectively. The results obtained are as follows; 1．The critical attack angle of the multi-plane otter board was determined to be 25.5 degrees. 2．Through the results of fig. 6 the relationship between lift-force and towing-speed, and, between drag-force and towing speed may be expressed in the following empirical formulas. L=42.7V^{1.99}. D=34.4V^{2.05}. 3. The ratio of lift and drag in the multi-plane otter board was ascertained to be 1.28, which shows the intermediate value between the upright type otter board (C_L/C_D=1.85), and the ordinary one (C_L/C_D=0.8).
出版者	鹿児島大学
日付	Created2016-10-28
言語	jpn
資源タイプ	departmental bulletin paper
出版タイプ	VoR
資源識別子	URI http://hdl.handle.net/10232/13697
収録誌情報	NCID AN00040498 ISSN 0453-087X 鹿児島大学水産学部紀要=Memoirs of Faculty of Fisheries Kagoshima University 巻24 開始ページ87 終了ページ97
ファイル	https://ir.kagoshima-u.ac.jp/?action=repository_action_common_download&item_id=7714&item_no=1&attribute_id=16&file_no=1
コンテンツ更新日時	2023-07-18