青森県高瀬川河口域の浅瀬が塩水遡上に与える影響に関する三次元数値流動解析による研究
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概要
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The Takase River, a mild slope and short river from a brackish water lake named Lake Ogawara, has a wide shallow area expanding from the river mouth to the middle reach of channel. Previous studies suggest saline water intrusion to the lake is probably influenced by the existence of the shallow area. In this study, a three-dimensional numerical simulation was conducted for a whole reach of channel in order to investigate the flow characteristics in the shallow water area and its influence upon the vertical flow structure in the low-water channel. The numerical results showed that the flow retardation in the shallow water area is caused due to a replacement of fresh water bulk stored in that area, and the retardation intensifies the density stratification in the low-water channel.
- Japan Society of Civil Engineersの論文
Japan Society of Civil Engineers | 論文
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