磨刀门河口枯季波生流场数值模拟研究
发布时间：2019-02-08 20:17
【摘要】：本文建立曲线坐标系下的双曲型缓坡方程波浪模型和考虑波浪辐射应力影响的深度平均2D潮流数学模型,首次研究了磨刀门河口2011年地形条件下的枯季波生流场。受波浪作用影响,落潮阶段,波浪作用方向与流向相反,在波浪顶托效应下拦门沙沙脊及外坡处流速普遍减小,形成两个主要回流区,口门外东西两侧浅滩处流速也减小,东西两汊及横洲深槽流速增大;涨潮阶段,波浪作用方向与流向相同,拦门沙沙脊及外坡处流速增大,沙脊处出现冲越流,口门两侧浅滩处流速增大,横洲深槽流速减小。
[Abstract]:In this paper, the wave model of hyperbolic gentle slope equation in curvilinear coordinate system and the depth average 2D tidal current mathematical model considering the effect of wave radiation stress are established. Under the influence of wave action, the direction of wave action is opposite to the flow direction in the period of falling tide. Under the effect of wave top support, the velocity of the sand ridge and the outside slope decreases generally, and two main backflow zones are formed, and the velocity of velocity at the shoal on the east and west sides of the entrance door also decreases. The velocity of the deep channel increases in the east and west branches and in the transverse channel; In the high tide stage, the direction of wave action is the same as that of the direction of flow, the velocity of the sand ridge and the slope increases, the flushing current appears at the ridge, the velocity of the shoal on both sides of the mouth increases, and the velocity of the deep channel of the transverse continent decreases.
【作者单位】： 珠江水利委员会珠江水利科学研究院;中交四航勘察设计院有限公司;
【基金】：广东省科技计划项目(2013B020200008) 国家自然科学基金项目(50909110,51579025) 广东省自然科学基金项目(9151061101000001) 国家重点基础研究发展计划项目(2013CB430403)
【分类号】：P731.2
本文编号：2418756
[Abstract]:In this paper, the wave model of hyperbolic gentle slope equation in curvilinear coordinate system and the depth average 2D tidal current mathematical model considering the effect of wave radiation stress are established. Under the influence of wave action, the direction of wave action is opposite to the flow direction in the period of falling tide. Under the effect of wave top support, the velocity of the sand ridge and the outside slope decreases generally, and two main backflow zones are formed, and the velocity of velocity at the shoal on the east and west sides of the entrance door also decreases. The velocity of the deep channel increases in the east and west branches and in the transverse channel; In the high tide stage, the direction of wave action is the same as that of the direction of flow, the velocity of the sand ridge and the slope increases, the flushing current appears at the ridge, the velocity of the shoal on both sides of the mouth increases, and the velocity of the deep channel of the transverse continent decreases.
【作者单位】： 珠江水利委员会珠江水利科学研究院;中交四航勘察设计院有限公司;
【基金】：广东省科技计划项目(2013B020200008) 国家自然科学基金项目(50909110,51579025) 广东省自然科学基金项目(9151061101000001) 国家重点基础研究发展计划项目(2013CB430403)
【分类号】：P731.2
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1 袁丽蓉;苏波;余顺超;卢陈;陈荣力;;磨刀门河口瞬时盐度分层状态及其动力分析[J];人民珠江;2012年S1期
，本文编号：2418756
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