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通过对以往的浅水环流数值模型进行改进，建立适用于极浅水域的且能达到较高分辨率的潮汐环流数值模型。模型的主要特点是：（1）通过改进海底摩擦项的表达式来克服传统的二次方律在极浅的潮滩区所产生的不稳定问题；（2）采用逆风格式处理动量方程中的平流项，有效地抑制由于岸边界移动引起的数值短波的扩散。结合老虎滩湾海上工程的需要，利用本模型进行一系列的数值模拟试验。经过实测资料验证表明，改进后的模型具有良好的稳定性和重现性。
Through the improvement of the numerical model of the shallow water circulation in the past, a numerical model of tidal current circulation which is suitable for very shallow waters and achieves higher resolution is established. The main features of the model are: (1) to overcome the instability problem caused by the traditional quadratic law in the extremely shallow tidal flat area by improving the expression of the friction coefficient at the seafloor; (2) The advection term effectively suppresses the diffusion of numerical shortwave caused by the movement of the shore. Combined with the needs of Laohu Beach Bay offshore project, a series of numerical simulation experiments are carried out using this model. The measured data show that the improved model has good stability and reproducibility.