强风作用下珠江伶仃洋河口湾能量耗散分析

发布时间：2018-04-27 19:39

本文选题：珠江河口 + 能量通量　；参考：《水利水电科技进展》2017年03期

【摘要】：基于珠江河网-河口湾的三维数值模型,通过区域能量耗散项积分方法分析了风作用下的伶仃洋河口湾能量耗散。结果表明,潮能沿深槽向河口与三角洲传播,风的作用改变了伶仃洋河口湾能量通量的振幅和相位,但对各断面多潮平均能量通量影响不大;强风的作用使伶仃洋河口湾区域的单位面积能耗增加,垂向涡动能耗增强1~2倍,摩擦能耗变幅不大,且不会改变地貌形态阻力作用下的能耗空间分布性质。
[Abstract]:Based on the three-dimensional numerical model of Pearl River network-estuary, the energy dissipation of Lingdingyang estuary under wind action is analyzed by means of regional energy dissipation integral method. The results show that tidal energy propagates to estuaries and deltas along deep channels, and the effect of wind changes the amplitude and phase of energy flux in Lingdingyang estuary, but has little effect on the average energy fluxes of various sections. The energy consumption per unit area of Lingdingyang Estuary Bay area is increased by strong wind, the energy consumption of vertical vortex is increased by 1 ~ 2 times, the energy consumption of friction is small, and the spatial distribution of energy consumption under the effect of geomorphological resistance is not changed.
【作者单位】：广东省水利水电科学研究院;中国科学院南海海洋研究所;
【基金】：广东水利科技创新项目(2016-12) 广东省科技计划(2010B03080004)
【分类号】：TV148

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