波生沿岸流数值模拟研究及其实验验证  

Numerical simulation of wave-induced long-shore currents and experimental verification

作　　者：孙涛[1] 韩光[1] 陶建华[1] 

机构地区：[1]天津大学力学系,天津300072

出　　处：《水利学报》2002年第11期1-7,共7页Journal of Hydraulic Engineering

基　　金：国家自然科学基金重点资助项目 (5 983 93 3 0 ) ;国家自然科学基金资助项目 (19772 0 3 1)

摘　　要：本文在高阶近似抛物化缓坡方程求解大面积波浪场基础上 ,利用辐射应力的概念建立了波生沿岸流模型。通过与不同斜坡地形条件下具有不同波高、周期的规则波及不规则波生流的物理模型实验结果比较 ,验证了数学模型应用的广泛性和正确性。本文着重分析了数学模型中水平涡粘系数的确定 。Based on the high order approximate parabolic equation for mild slope, the concept of radiation stress is applied to establish the model for wave induced long shore currents. The applicability and validity of the model is verified by experiments both for regular and irregular wave induced currents with different wave height and period under the condition of various slope. The emphasis of the analysis is laid on the determination of the horizontal eddy coefficient. Some laws of wave induced long shore current are obtained.

关 键 词：波生沿岸流 数值模拟 抛物缓坡方程 水流 数学模型 

分 类 号：TV139.2[水利工程—水力学及河流动力学]