浔江湾海水交换时间的计算

Computation of the Sea-water Exchange in Xunjiang Bay

采用箱式模型、二维ADI流体方程和对流 扩散模型计算浔江湾海水交换时间,分析浔江湾的水动力特点和湾内海水交换时空分布的特点.计算表明,浔江湾的海水平均交换时间为1.04d;湾内海水涨潮速度比落潮速度快;湾口的海水交换比湾内的其他地方快.

With the box model,2D ADI tidal current equation and convectiondiffusion model,the exchange time of Xunjiang bay water is computated.Hydrodynamic features and the spacetime distribution of waterexchange in Xunjiang bay are analyzed by the model results.The computation shows that the average exchange time is 1.04 days;the flooding velocity is higher than the ebbing one;the water at the bay mouth exchanges more quickly than that at the bay top.