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  1. 紀要論文
  2. 琉球大学理工学部紀要 工学編
  3. 17号
  1. 部局別インデックス
  2. 工学部

魚の泳動に関する研究

http://hdl.handle.net/20.500.12000/27574
http://hdl.handle.net/20.500.12000/27574
ef1b72c9-dc02-41ba-a5bb-c83d94f26e0b
名前 / ファイル ライセンス アクション
No17P015.pdf No17P015.pdf
Item type デフォルトアイテムタイプ(フル)(1)
公開日 2013-09-19
タイトル
タイトル 魚の泳動に関する研究
言語 ja
タイトル
タイトル Study on swimming of fish
言語 en
作成者 永井, 實

× 永井, 實

ja 永井, 實

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真栄田, 義才

× 真栄田, 義才

ja 真栄田, 義才

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伊良部, 邦夫

× 伊良部, 邦夫

ja 伊良部, 邦夫

Search repository
Nagai, Minoru

× Nagai, Minoru

en Nagai, Minoru

Search repository
Maeda, Gisai

× Maeda, Gisai

en Maeda, Gisai

Search repository
Irabu, Kunio

× Irabu, Kunio

en Irabu, Kunio

Search repository
アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
内容記述
内容記述タイプ Other
内容記述 Though it is well known that some aquatic animals can swim at higher speed than the value estimated from both of the muscle power and the friction drag received from the stream around the animal, the reason of such a high speed propulsion seems not yet to be solved. In this study, first, the swimming abilities of the various swimmers involving small fishes, dolphins, whales and a manmade submarine for reference were rearranged in a logarithmic chart and the subject of the problem was settled quantitatively. Then, measurements of drag force of some fishes by a towing type instrument with strain guage and observations of the swimming motion of fishes by a high speed camera were carried out in the water channel of laboratory. According to the experimental results, there is no evidence of that the skin friction of fish is smaller than that of the solid boundary of axi-symmetrical body in the experimental range of Reynolds number between 5X10⁴ and 5X10⁵. And it was found that swimming speed of fishes is proportional to the body length and the oscillating frequency of the tail fin. Then, a new dimensionless number u/(f・ℓ) was introduced as a swimming number. In the present observations, the swimming numbers of fish of three species were coincident each other at the value of 0.6, and this value also agreed with other species of a previous investigation.
内容記述
内容記述タイプ Other
内容記述 紀要論文
出版者
言語 ja
出版者 琉球大学理工学部
出版者
言語 en
出版者 Science and Engineering Division, University of the Ryukyus
言語
言語 jpn
資源タイプ
資源タイプ departmental bulletin paper
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
識別子
識別子 http://hdl.handle.net/20.500.12000/27574
識別子タイプ HDL
収録物識別子
収録物識別子タイプ ISSN
収録物識別子 0387-429X
収録物識別子
収録物識別子タイプ NCID
収録物識別子 AN00250785
収録物名
言語 ja
収録物名 琉球大学理工学部紀要. 工学篇
収録物名
言語 en
収録物名 Bulletin of Science & Engineering Division, University of the Ryukyus. Engineering
書誌情報
号 17, p. 15-21, 発行日 1979-03-01
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