2D numerical simulation of tidal bore in Qiantang River
2D numerical simulation of tidal bore in Qiantang River
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作者：
Mao Xian-zhong
基于WLF(水位-海底地形公式)精确解的黎曼解，采用戈杜诺夫式二维浅水方程求解带海底地形方程。应用该数学模型模拟了钱塘江潮涌的形成、演化和消散，计算结果与现场实测吻合较好，数值模拟了潮涌的交叉、反射和线型现象。潮汐现象,使人们对钱塘江潮汐现象有了更多的认识。
2D shallow-water equations with bottom topography are solved by Godunov-type scheme based on the exact Riemann solution,which is gotten by using WLF(Water Level-Bottom Topography Formulation).The mathematical model is applied to simulate the formation,evolution and dissipation of the tidal bore in the Qiantang River.A good agreement is made between the computed and field measurements,and it also numerically replicates the phenomena of the intersecting,reflection of the tidal bores,and line-type tidal bore,which leads to more understanding about the tidal bores in the Qiantang River.