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洪水時の実河川での乱れの瞬間像の計測
https://jaxa.repo.nii.ac.jp/records/37675
https://jaxa.repo.nii.ac.jp/records/3767596f3ef26-da8e-45b3-abd4-f34dfd229fdd
名前 / ファイル | ライセンス | アクション |
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nalsp0018013.pdf (574.8 kB)
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Item type | 会議発表論文 / Conference Paper(1) | |||||
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公開日 | 2015-03-26 | |||||
タイトル | ||||||
タイトル | 洪水時の実河川での乱れの瞬間像の計測 | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 境界層遷移 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 境界層制御 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 研究 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 洪水 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 河川流計測 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 野外計測 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 電磁流速計 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 乱流計測 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 河川工学 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 高レイノルズ数水流 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 乱流水流 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | レイノルズ応力計測 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 秩序構造 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 条件つきサンプリング | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | ボイル | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | boundary layer transition | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | boundary layer control | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | investigation | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | flood | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | river flow measurement | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | field measurement | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | electromagnetic velocimeter | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | turbulence measurement | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | river engineering | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | high Reynolds number water flow | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | turbulent water flow | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Reynolds stress measurement | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | coherent structure | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | conditional sampling | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | boil | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_5794 | |||||
資源タイプ | conference paper | |||||
その他のタイトル(英) | ||||||
その他のタイトル | Simultaneous 3D turbulent large-scale structures in a flood flow by multi-channels measuring systems | |||||
著者 |
日野, 幹雄
× 日野, 幹雄× Meng, Y.× 村山, 宣義× Hino, Mikio× Meng, Yang× Murayama, Nobuyoshi |
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著者所属 | ||||||
東京工業大学 工学部 | ||||||
著者所属 | ||||||
東京工業大学 工学部 | ||||||
著者所属 | ||||||
東京工業大学 工学部 | ||||||
著者所属(英) | ||||||
en | ||||||
Tokyo Institute of Technology Faculty of Engineering | ||||||
著者所属(英) | ||||||
en | ||||||
Tokyo Institute of Technology Faculty of Engineering | ||||||
著者所属(英) | ||||||
en | ||||||
Tokyo Institute of Technology Faculty of Engineering | ||||||
出版者 | ||||||
出版者 | 航空宇宙技術研究所 | |||||
出版者(英) | ||||||
出版者 | National Aerospace Laboratory (NAL) | |||||
書誌情報 |
航空宇宙技術研究所特別資料 en : Special Publication of National Aerospace Laboratory 巻 18, p. 55-58, 発行日 1992-11 |
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会議概要(会議名, 開催地, 会期, 主催者等) | ||||||
内容記述タイプ | Other | |||||
内容記述 | 航空宇宙技術研究所 24-25 Sep. 1991 (9th). 16-18 Mar. 1992 (10th) 東京 日本 | |||||
会議概要(会議名, 開催地, 会期, 主催者等)(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | National Aerospace Laboratory 24-25 Sep. 1991 (9th). 16-18 Mar. 1992 (10th) Tokyo Japan | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | レイノルズ数が10{6}程度に達する洪水時の涸沼川の流れの乱流大規模構造について、16チャンネルの電磁流速計を用いて野外計測を行った。平均流に直角な断面内の8点における乱流速度成分(u,v)をサンプルし、同時にA/D変換器により記録する。データ解析の新らしい手法を用いて、これらの記録から洪水時の流れにおける秩序構造の準瞬時的3次元イメージを再構成した。河床近くでは低速の水塊があって間欠的に正のレイノルズ応力の高いピーク値を生じさせている。洪水時に高い濃度の水中運搬物が存在することは、このような構造によって説明し得る可能性がある。流れの表面近くでも秩序構造が見出され、小規模のボイルがそれによって作り出されている。 | |||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Field measurements on turbulent large-scale structure of a flood flow in the Hinuma river at a high Reynolds number of the order of 10 (exp 6) were conducted with 16-channels electromagnetic velocimeters. The turbulent velocity components (u, v) at eight points in a plane perpendicular to the mean flow have been sampled and recorded simultaneously by a A/D converter. The quasi-instantaneous 3D images of coherent structures in the flood flow were reconstructed from these data by using a new method of data analysis. These structures detected near the river bed are low-velocity lumps of fluid and generate intermittently peaks of the high positive Reynolds stress. The high concentration of the suspend load in the flood flow may be explained by these structures. Near water surface, the coherent structure has also been found and they generated small-scale boils. | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0289-260X | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN10097345 | |||||
資料番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 資料番号: AA0004167013 | |||||
レポート番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | レポート番号: NAL SP-18 |