| 摘要: |
| 利用长江口平面二维水流盐度数学模型，模拟计算了4种水文组合条件下径流和潮流对盐水入侵的影响．探讨了长江口拦门沙地区盐度随水流的扩散输移规律．利用长江口北槽三维水流盐度数学模型分析了盐度梯度引起的斜压项对水流的影响，以及航道增深对盐水入侵的影响． |
| 关键词: 长江口 水流 盐度 数值模拟 盐水入侵 扩散输移 |
| DOI： |
| 分类号:TV148.4 |
| 基金项目: |
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| Numerical simulation of salinity in Yangtze River Estuary |
|
LUO Xiao-feng,CHEN Zhi-chang
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| Abstract: |
| Effects of the runoff and the tidal flow on the invasion of salt water with four kinds of hydrologic conditions are simulated by use of a two-dimensional salinity mathematical model for the Yangtze River Estuary. Transportation laws of salinity with flow in the Lanmensha area of the Yangtze River Estuary are discussed. Influences of the inclined pressure item caused by salinity-gradient on the flow and those of the deepening of the channel on the invasion of salt water are analyzed by use of a three-dimensional salinity mathematical model for the north channel of the Yangtze River Estuary. |
| Key words: salinity,invasion of salt water,Yangtze River Estuary,numerical simulation, |
