摘要
通过建立一维涌潮数学模型,以概化的矩形断面河道为对象,采用无色散、耗散项和有色散、耗散项两种不同模型,对涌潮的结构和变形进行分析、比较.计算得出:在发生涌潮前,这两种模型所得到的水面线结果基本相同;在涌潮段和涌潮后,两种模型计算所得到的水面线有较大的差别.在不同水深和不同潮差下,两者的差别是不同的.
Based on the ideal rectangular cross-segtion watercourse, two 1-D bore models, one with dispersion and dissipation and another without ones, were established. The processes of tidal wave deformation under those two models were analysed and compared. Computational result shows that, in the front of tidal wave, the water surface lines of two models are basically the same; in the area behind of tidal wave, the water surface lines of two models are obviously different. In the analyzing, we find that the difference of those two models is not the same in different depths of the water and different tide ranges.
出处
《武汉大学学报（工学版）》
CAS
CSCD
北大核心
2006年第3期21-25,共5页
Engineering Journal of Wuhan University
关键词
涌潮
色散
耗散
tidal bore
dispersion
dissipation
