河口泥沙迁移扩散的动力计算与分析  

Dynamic Computation and Analysis on the Transfer and Diffusion of Silt in the Estuary Region

作　　者：李银波[1] 孙明光[1] 

机构地区：[1]中山大学应用力学与工程系,广州510275

出　　处：《中山大学学报（自然科学版）》1999年第S1期1-5,共5页Acta Scientiarum Naturalium Universitatis Sunyatseni

基　　金：国家自然科学基金

摘　　要：利用已经建立的海域泥沙迁移扩散动力计算的数学模型， 计算了河口流场、河口倾倒区疏浚泥的沉积厚度和扩散范围． 结果表明， 常向波浪是河口泥沙迁移扩散的原因和动力，而深槽处较大的潮流速也是泥沙迁移扩散的原因之一． 对于泥沙不同的年倾倒量所引起的沉积厚度问题， 也进行了对比计算．This paper employes a built mathematical model of dynamic computation on the transfer and diffusion of silt in the sea region. The field of a tide current, deposit thickness and diffusing area of dredged silt in the estuary region are computed. Result shows that constant direction waves, as well as higher velocity of a tide current in the deep channel are one of the reason and dynamics to the transfer and diffusion of silt in the estuary region. A computation of comparision is executed for deposit thickness, which is produced by different pouring quantities of silt in a year.

关 键 词：河口 泥沙 迁移扩散 波浪 潮流 

分 类 号：TV142[水利工程—水力学及河流动力学]