本文给出了一个河口、三角洲环流模式,注意力集中在盐水楔型河口的情形。由于我们把江河的出流看作为一个表面漂浮射流,因而可以寻求相似解。在给出了淡水(或半咸水)与海水之间分界面上的摩擦切应力的估计之后,通过求解给出的控制方程组得到了出流河水的扩展以及淡水(或半咸水)内的速度场,比较表明所得到的解跟已知的理论分析与实验观测结果很一致。 This paper presents an estuarine and delta circulation model with a focus on the brine wedge estuary. Since we consider the outflow of a river as a surface floating jet, we can seek similar solutions. After an estimate of the frictional shear stress at the interface between freshwater (or brackish water) and seawater is given, the expansion of the effluent stream and the increase in freshwater (or brackish water) are obtained by solving the given set of control equations The comparison shows that the obtained solution is in good agreement with the known theoretical and experimental observations.