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マルチレベル密度流モデルの開発と人工湧昇流への適用
https://fra.repo.nii.ac.jp/records/2008101
https://fra.repo.nii.ac.jp/records/200810175966462-4363-46c6-995a-4c248c3e4511
| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2024-06-19 | |||||||||||
| タイトル | ||||||||||||
| タイトル | マルチレベル密度流モデルの開発と人工湧昇流への適用 | |||||||||||
| 言語 | ja | |||||||||||
| タイトル | ||||||||||||
| タイトル | Development of Multi-Level Density Flow Model and its Application to the Upwelling Generated by Artificial Structures | |||||||||||
| 言語 | en | |||||||||||
| 言語 | ||||||||||||
| 言語 | jpn | |||||||||||
| キーワード | ||||||||||||
| 言語 | en | |||||||||||
| 主題Scheme | Other | |||||||||||
| 主題 | upwelling; multi-level density flow model; stratified flow field; interface; internal Froude number; simulation | |||||||||||
| 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 | article | |||||||||||
| アクセス権 | ||||||||||||
| アクセス権 | metadata only access | |||||||||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||||||||
| 著者 |
藤原, 正幸
× 藤原, 正幸
× 明田, 定満
× 武内, 智行
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| 抄録 | ||||||||||||
| 内容記述タイプ | Abstract | |||||||||||
| 内容記述 | A plan is going to realize, which is to create fishing grounds by utilizing upwelling generated by artificial structures setting on the seabed. But only a few studies on the effectiveness of "the upwelling generation structure" under stratified field have been carried out. Therefore authors developed multi-level density flow model which is applicable to the stratified flow fields and discussed the validity of the numerical model in comparison with experimental results. The experiments were done in the two-layered flow with the structure shaped like a buttress. The main results obtained in this analysis are as follows. 1 Calculated values of the maximum height of the interface are in good agreement with the experimental results in two dimensions, but a little smaller in three dimensions. 2 Other calculated values (area between measured and initial interface and area of mixed layer) are in good agreement with measured values. 3 This model cannot simulate the internal hydraulic jump. The hydraulic structure of upwelling in stratified flow field calculated using this numerical model is as follows. The flow from the upper stream hit against the structure, and that generates upward flow. It makes interface shallower (upwelling). The increase in the height of the interface is in proportion to internal Froude number (Fdi), but reaches to the platou for Fdi>1. Behind the structure the flow passing over it comes across the flows pssing beside it, that creates the upward flow near the seabed. This upward flow does not have enough energy which makes interface shallower again. However because of that flow generated just over the seabed, it has potential to convey the substance (nutrients) on the seabed up to the interface. | |||||||||||
| 言語 | en | |||||||||||
| bibliographic_information |
ja : 水産工学研究所技報. 水産土木 en : Technical report of National Research Institute of Fisheries Engineering. Aquaculture and fishing port 巻 14, p. 13-35, ページ数 23, 発行日 1992-03 |
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| 出版者 | ||||||||||||
| 出版者 | 水産工学研究所 | |||||||||||
| 言語 | ja | |||||||||||
| 出版者 | ||||||||||||
| 出版者 | National Research Institute of Fisheries Engineering | |||||||||||
| 言語 | en | |||||||||||
| item_10002_source_id_9 | ||||||||||||
| 収録物識別子タイプ | PISSN | |||||||||||
| 収録物識別子 | 0389-2344 | |||||||||||
| item_10002_source_id_11 | ||||||||||||
| 収録物識別子タイプ | NCID | |||||||||||
| 収録物識別子 | AN00329681 | |||||||||||
| 情報源 | ||||||||||||
| 識別子タイプ | Local | |||||||||||
| 関連識別子 | nrife_gd_14_13 | |||||||||||
| 関連サイト | ||||||||||||
| 識別子タイプ | URI | |||||||||||
| 関連識別子 | https://agriknowledge.affrc.go.jp/RN/2010500406 | |||||||||||
| 言語 | ja | |||||||||||
| 関連名称 | 日本農学文献記事索引(agriknowledge) | |||||||||||
