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- IRIE Masayasu
- Department of Civil Engineering, Division of Global Architecture, Graduate School of Engineering, Osaka University, Japan
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- YAMAGUCHI Tomo
- Department of Civil Engineering, Division of Global Architecture, Graduate School of Engineering, Osaka University, Japan
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- NISHIDA Shuzo
- Department of Civil Engineering, Division of Global Architecture, Graduate School of Engineering, Osaka University, Japan
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- NAKATANI Yusuke
- Department of Civil Engineering, Division of Global Architecture, Graduate School of Engineering, Osaka University, Japan
抄録
An urban tidal river network is one of the most difficult targets to simulate the flow and water quality in various kinds of water areas because the model must simulate both the vertical feature of the intrusion of sea water and the horizontal feature of water quality that is affected by human activities. In this paper, we determine the applicability of a three-dimensional flow and water quality model when reproducing the process of water with high concentrations of nitrogen, phosphorus and other constituents flowing through an urban tidal river network. We applied a three-dimensional model to Neya River, its tributaries and its downstream rivers in Osaka. The model can simulate well the vertical stratification of temperature and salinity near three river mouths, the mixing process of two different sources of water originating from Yodo River, and Neya River and its tributaries, the longitudinal profiles of chemical oxygen demand (COD), dissolved oxygen (DO), total nitrogen and phosphorus. Calculated water levels in the upstream area of Neya River system, however, are not coincident with the observations. A 3D water quality model, which is a potent tool in ocean and lakes, proved to be a versatile enough tool to simulate complicated and tidal urban river networks.
収録刊行物
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- Journal of Water and Environment Technology
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Journal of Water and Environment Technology 13 (3), 231-248, 2015
公益社団法人 日本水環境学会
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詳細情報 詳細情報について
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- CRID
- 1390282680155499648
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- NII論文ID
- 130005076088
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- ISSN
- 13482165
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可