...二维浅水方程，无结构网格，Roe 隐格式，对称 GS 法，地形处理 中图分类号：TV131.2 [gap=8960]Keywords：two-dimensional shallow water equation，unstructured grids，implicit Roe scheme， symmetric Gauss-Seidel method，topograph..
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To solve the two-dimensional shallow water equation, the finite volume method, combining with the finite difference method, is adopted in this text to develop the numerical value model.
对于二维浅水波模型，本文采用有限体积法并结合有限差分法建立了数值模型。
The vorticity equation was first established and the characteristics of vortex motion in two-dimensional shallow-water flows was analyzed, and then discrete vortex method (DVM) was briefly described.
导出了二维浅水流动的涡动方程与速度环量的随体导数表达式，以此为基础，分析了二维浅水流动中旋涡的动力学性质；
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