波浪漫滩边界对波浪数值计算的影响  

Effects of the Wave-Swashing Boundary on the Wave Numerical Calculation

作　　者：杨家轩[1] 朱首贤[2] 李训强[1] 张文静[1] 

机构地区：[1]解放军理工大学气象学院,江苏南京211101 [2]河海大学港口海岸与近海工程学院,江苏南京210098

出　　处：《海洋科学进展》2013年第3期305-312,共8页Advances in Marine Science

基　　金：国家自然科学基金--引入波浪漫滩边界的近岸海域悬沙输运数值模式及其应用(41076048);长江冲淡水扩展区域低盐水团动力机制(40906044);中央高校基本科研业务费项目--流和温盐垂向异构坐标的新型海洋模式研制及其应用(2011B05714)

摘　　要：分别采用波浪漫滩边界、固壁边界进行波浪水槽实验的数值模拟,检验波浪漫滩对波浪数值计算的影响;然后设计了多种地形坡度的波浪数值模拟试验,分析不同地形坡度情况下波浪漫滩对波浪数值计算的影响。数值模拟结果表明,波浪漫滩对邻近区域波浪数值计算的影响在多种地形坡度下都很明显,采用波浪漫滩边界条件可有效提高波浪数值计算精度。Wave-swashing is a kind of small scale motion deduced by waves. It is, however, generally ig nored in numerical simulation of wave propagation. In order to test the effects of the wave-swashing on the wave numerical calculation, the wave-swashing boundary conditions and the wall boundary condition of are used to simulate the flume experiment. In addition,the wave numerical simulations under multi-types of terrain slopes are designed in order to analyze the effects of the wave-swashing boundary on the wave cal- culation in the case of different slopes. The results show that the influence of the wave-swashing boundary on the wave calculation in the adjacent areas is obvious in the case of different terrain slopes. Therefore, the conditions of wave-swashing boundary can be used to improve the accuracy of wave numerical ealeula- tion effectively.

关 键 词：波浪漫滩 固壁边界 水槽实验 数值模拟 

分 类 号：P731[天文地球—海洋科学]