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平面網地の流体抵抗に関する基礎的研究
http://hdl.handle.net/10232/13346
http://hdl.handle.net/10232/133462e061a5b-8b36-42be-b753-f425e2ed1ae3
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
AN00040498_v35-2_p169-253.pdf (7.4 MB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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| 公開日 | 2015-06-08 | |||||
| タイトル | ||||||
| タイトル | 平面網地の流体抵抗に関する基礎的研究 | |||||
| タイトル言語 | ja | |||||
| タイトル | ||||||
| タイトル | Fundamental Studies of the Fluid Dynamical Resistance on the Plane Netting | |||||
| タイトル言語 | en | |||||
| 著者 |
今井, 健彦
× 今井, 健彦 |
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| 言語 | ||||||
| 言語 | jpn | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | departmental bulletin paper | |||||
| 要約 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | To determine the fluid dynamical coefficients for plane netting, the following studies were carried out in the water circulating tank of Faculty of Fiseries, Kagoshima University and in the towing tank of Faculty of Fisheries, Hokkaido University. As a rule coefficients for fluid dynamical resistance of netting depend on the projective areas, and therefore it becomes necessary to determine the experimental equations for the areas towards verious attack angles. In these studies, the minimum unit of the netting fabric is termed as a "Netting element". At the elementary fabric a horizontal cutting is made at the respective intermediate points of the four knotted legs. The shape of a netting element is to be shown in the form "X". The netting used in these studies are "Weaver's knot netting" and the "twisted knotless netting" which are most familier in the Japanese fisheries. Basing on the two sets of tank-experiments made on the two kinds of the netting, the following results were obtained : 1) In the case of towing tank experiments the normal force coefficient and the tangential force coefficient are proved to be independent of the Reynolds number with in the range from 6×10^2 to 3×10^3; and in the case of the circulating tank experiments they are proved to be so with the range from 8×10^2 to 3×10^3. 2) The edge effect of the netting is not depending on mesh numbers when the value of 2ij/(i+j) is larger than 6.0. In this case, "i" is the mesh numbers counted to the twinewise direction and "j" is the counted to the normal direction, on the netting piece used. ･･･[the rest omitted] |
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| 内容記述言語 | en | |||||
| 収録雑誌名 |
ja : 鹿児島大学水産学部紀要 en : Memoirs of Faculty of Fisheries Kagoshima University 巻 35, 号 2, p. 169-253, 発行日 1986-12-25 |
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| 作成日 | ||||||
| 日付 | 1986-12-25 | |||||
| 日付タイプ | Issued | |||||
| ISSN | ||||||
| 収録物識別子タイプ | PISSN | |||||
| ISSN | 0453087X | |||||
| NII書誌ID（雑誌） | ||||||
| 収録物識別子タイプ | NCID | |||||
| NC ID | AN00040498 | |||||
| 出版タイプ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
| NDC | ||||||
| 主題Scheme | NDC | |||||
| 主題 | 660 | |||||
| 公開者・出版者 | ||||||
| 出版者 | 鹿児島大学 | |||||
| 出版者言語 | ja | |||||
| 公開者・出版者 | ||||||
| 出版者 | Kagoshima University | |||||
| 出版者言語 | en | |||||
