渗透法在苏北辐射沙脊群海域潮流计算中的应用

针对苏北辐射沙脊群海域潮滩边界坡度小、存在浅滩显露的地形特点,将渗透法引入到潮流数值计算中,推导出考虑渗透时的二维潮流控制方程,并进行了数值模拟.数值模拟的计算结果和实测结果吻合较好,从计算得到的流场图中,明显可见潮滩、沙脊对潮流的影响,表明渗透法对于该海域的潮流计算具有很好的适用性.

Application of the permeation method in numerically simulating tidal currents in a marine area with radial sand ridges in the north of Jiangsu Province

Due to the mild-slope tidal beaches and the emergence of shoals in the marine area with radial sand ridges in the north of Jiangsu Province,a permeation method was incorporated into the numerical simulation of tidal currents.The 2D tidal current governing equations were modified accordingly and solved numerically.Comparison of the computational data with the measured data shows that they are well matched.From the current field maps,we can easily find the effects of the tidal beaches and the sand ridges on the tidal currents,which indicates that the application of the permeation method in the model is suitable for tidal current calculation.