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湿原保全を目的とした植生による水流の制御に関する研究
https://doi.org/10.24514/00002169
https://doi.org/10.24514/000021695b9afe0f-a4e3-4fe9-9fd5-0b36a944de6f
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
nkk_report_No46p91-141p.pdf (45.0 MB)
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| Item type | 紀要論文01 / Departmental Bulletin Original Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2019-03-22 | |||||
| タイトル | ||||||
| タイトル | 湿原保全を目的とした植生による水流の制御に関する研究 | |||||
| タイトル | ||||||
| タイトル | A study on Control of Open Channel Flow by Vegetation for Wetland Conservation | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | jpn | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | 植生 | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | 乱流 | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | 数値計算 | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | 水平渦 | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | 土砂堆積 | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | 湿原 | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | vegetation | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | turbulent shear flow | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | horizontal two dimensional analysis | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | organized horizontal vortex | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | sedimentation | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | wetland | |||||
| 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 | |||||
| ID登録 | ||||||
| ID登録 | 10.24514/00002169 | |||||
| ID登録タイプ | JaLC | |||||
| 著者 |
中矢, 哲郎
× 中矢, 哲郎 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Behavior of the fine sediment around vegetation is still unknown because knowledge of complex flow around vegetation is limited. Moreover, only limited research has been done on flow resistance and fine sediment transport inof open channel flow wherewith vegetation that considers a growth type, which includinge emergent plants, submerged plants, and land plants, etc., has been considered are hardly researched. This study considered the growth type of vegetation and analyzed the flow of water with vegetation that considers a growth type of vegetation by using laboratory experiments that includeds various methods such as LDV and numerical simulations employing turbulence model. For emergent plants, it was found that the lateral momentum of transport reachedtakes a peak value at a certain vegetation density which wasis much larger than the density of the actual reed field, and the cause of this wascause related greatly to the shape of the horizontal vortex. WhenFor the case in which the ratio of a vegetation group's length to width wasis nearly 1:.7, the horizontal eddies were generated at the boundary of the vegetation group's region, and the momentum of transport reachedtakes a peak value. A numerical computation employing SDS&2DH turbulence models was introduced to investigate the resistance and the roles of the surface and submerged vegetation layers, and the effect of generated turbulence. Theseis models allowed us tocan predict the mean velocity of the surface and submerged vegetation layers, and provided information on the shapes of vortices, lateral distributions of the depth averaged flow velocity, and turbulence statistics. A phenomenon involving wavy motion of very flexible submerged vegetation (termed honami) was observed, and the displacement of the plants was found to be closely associated with the structure of the turbulent flow, which yieldeds a larger Reynolds stress near the top of the vegetation layer. Finally these experiments and simulations applyied to the development of methods for catching fine sediment method for the wetland conservation. | |||||
| 書誌情報 |
農村工学研究所報告 en : Bulletin of the NARO, Rural Engineering 巻 46, p. 91-141, 発行日 2007-03-01 |
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| 出版者 | ||||||
| 出版者 | 独立行政法人 農業・食品産業技術総合研究機構 農村工学研究所 | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1882-3262 | |||||
| DOI | ||||||
| 関連タイプ | isIdenticalTo | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.24514/00002169 | |||||
| 著者版フラグ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
