二维浅水域潮流数值模拟的ADI－QUICK格式

Numerical Simulation On 2-D Shallow Water Tidal Current by ADI-QUICK method

本文采用ＡＤＩ－ＱＵＩＣＫ有限差分格式，用单一正交网格系进行空间离散，对二维浅水流动方程和污染物对流－扩散问题进行数值模拟。方法具有高阶精度，不呈现数值振荡，不带有可感受的数值衰减，计算过程稳定，计算方法简便等优点。本文以大连湾海域为实例，计算了Ｍ２－分潮流动规律。基于ＡＤＩ－ＱＵＩＣＫ格式编制的ＦＯＲＴＲＡＮ程序对其它的浅水海域和河口的流动问题具有普遍的适应性。

In order to find an appropriate programming for pollutant discharge Control and water quality protection in the near coastal region,a correct prediction of the tidal current is needed.A new FD scheme combining the ADI and QUICK methods is adopted to investigate numerically the 2-D shallow water tidal current equation in a single orthogonal grid system.This method possesses the desirable properties of high accuracy,inherent numerical stability(no wiggles),non numerical damping and algorithm simplicity.The ADI-QUICK scheme has been successfully applied in the numerical simulation of transient current generated by M,tide in the Dalian Bay.The present code in FORTRAN is available in general sense for the numerical simulation of flows in any near coastal region and estuary.