罗源湾全日潮汐和潮流数值计算

Numerical computation of diurnal tide and tidal current in Luoyuan Bay

采用不规则三角形网格的分步杂交法,建立罗源湾海域二维变边界全日潮汐和潮流数值模型。将计算值与实测资料比较,结果表明符合程度良好。给出了同潮时线与等振幅线、潮流椭圆、最大潮流及不同时刻潮流场分布。应用该模型可以较系统地了解罗源湾全日潮的潮汐、潮流状况。

Using the split steps finite element method, the varied-boundary two-dimensional numerical model of diurnal tide and tidal current in the Luoyuan Bay is constructed. The tally of computation and observation is in a good agreement. The tide and the tidal current in Luoyuan Bay can be known from the numerica model calculation. Diurnal tide and tidal current at different times and the eulerian residual current are calculated, also the cotidal line, the iso-amplitude curves and the distribution of tidal current ellipses are given in this paper.