摘要
采用基于准确Riemann解的Godunov格式,求解包括底坡项的二维浅水流动方程,应用WLF(water level-bottom topogra-phy formulation)方法求解Riemann解。经实测涌潮资料验证,较好地模拟了钱塘江涌潮的发生、发展及其衰减的过程,复演了涌潮的相交、反射和一线潮等现象,对钱塘江涌潮宏观规律的认识有所加深。
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.
出处
《海洋工程》
CSCD
北大核心
2007年第1期50-56,共7页
The Ocean Engineering
基金
国家自然科学基金资助项目(40106010)
浙江省自然科学基金资助项目(M403054)
