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円錐網の抗力係数とレイノルズ数
http://hdl.handle.net/10232/678
http://hdl.handle.net/10232/67862a1eb2e-baac-4709-9c9e-d51f75d47810
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
KJ00004175496.pdf (507.9 kB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2015-04-28 | |||||
| タイトル | ||||||
| タイトル | 円錐網の抗力係数とレイノルズ数 | |||||
| 言語 | ja | |||||
| タイトル | ||||||
| タイトル | Fluid Dynamical Drag Coefficient on the Conical Nets Relative to Reynolds Number | |||||
| 言語 | en | |||||
| 著者 |
洪, 性完
× 洪, 性完× 今井, 健彦 |
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| 言語 | ||||||
| 言語 | jpn | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Conical net | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Drag coefficient | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Open area ratio | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Representative velocity | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Reynolds number | |||||
| 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(Abstract) | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | A fluid dynamic of midwater trawl and codend are associated with a flow velocity inside the net. This study investigates the relationship between drag coefficient of conical nets and Reynolds number which concerns with a flow velocity inside the net. In order to measure the drag of conical nets, twenty models of different open area ratios, which composed five kinds of twisted knotless nettings and four kinds of hanging angles, were tested in the flume tank of Kagoshima University. The mouth of each net was attached to a circular shaped frame to maintain geometric feature, and the nets were set into the flume tank normal to the flow direction. The velocity was monitored by a supersonic digital current meter which is installed in the flume tank, and the drag was measured using a three-component load cell. Measured values were stored in a data file of a computer for analysis. If uniform hanging angle is the significant factor affecting the drag of the conical nets depended on the open area ratio. When the representative velocity U_m/ β and representative length d were used as a characteristic velocity inside the net. And scale, a more general correlation between the drag coefficient and the Reynolds number are found using the exponential linear regression. C_D' was found to be C_D'= 18.88 Re'^<-0.63>. | |||||
| 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 45, p. 29-35, 発行日 1996-12-24 |
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| 作成日 | ||||||
| 日付 | 1996-12-24 | |||||
| 日付タイプ | Issued | |||||
| ISSN | ||||||
| 収録物識別子タイプ | PISSN | |||||
| 収録物識別子 | 0453087X | |||||
| NII書誌ID（雑誌） | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | 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 | |||||
| NIIsubject | ||||||
| 言語 | ja | |||||
| 主題Scheme | Other | |||||
| 主題 | 自然科学 | |||||
| 公開者・出版者 | ||||||
| 出版者 | 鹿児島大学 | |||||
| 言語 | ja | |||||
| 公開者・出版者 | ||||||
| 出版者 | Kagoshima University | |||||
| 言語 | en | |||||
