汕头港湾附近水域潮流特征和污染物扩散的数值计算　Ⅰ汕头港湾附近水域潮流特征及数值模拟

Numerical Computation of the Tidal Current Features and the Pollutant Dispersion in the Shantou Estuary Nearby Waters ⅠTidal Current Features and Numerical Modeling

汕头港湾附近水域的潮流特征，由于拦沙堤的建成及港池附近河道变窄而发生了一些变化。本文在取得现场实测资料的基础上，采用沿深度平均的二维浅水潮波方程，对该水体的潮流场进行了数值模拟计算，重现出潮流场在一个潮周期中的变化过程，分析潮流对污染扩散的作用。

becuase the sandbreak dam rad been built and the nearby waterway of the harhour narrowed down,the tidal current features in the Shantou estuary nearby waters has changed.Based on the data,the two-dimesional nonlinear Leendertse's model to deal with numerical comptitation of the tidal current,has been applied.The tidal current is reapeared in the changing process of a tidal period.The effect of the pollutant on the dispersion is analysed.