非结构化网格下近岸波生流数值模拟  

Numerical simulation of near-shore wave-induced currents on unstructured grid

作　　者：唐军[1] 魏美芳[1] 

机构地区：[1]大连理工大学海岸和近海工程国家重点实验室,辽宁大连116023

出　　处：《海洋学报》2010年第6期41-46,共6页

基　　金：国家自然科学基金项目(5083900150709004);高等学校博士学科点专项科研基金课题(20070141032);国家重点基础研究发展计划资助项目(2005CB724202);辽宁省教育厅高等学校科技研究项目(2006T018)

摘　　要：波浪破碎产生的近岸流是近岸海域关键的水动力因素之一。基于近岸波浪的椭圆型缓坡方程和二维近岸波生流方程,建立了非结构化网格下近岸波浪破碎形成的近岸流数值模型。数值模型中,在空间上采用有限体积法进行数值离散,在时间上采用欧拉向前格式数值离散。数值计算结果表明,该数值模型可以有效地模拟近岸波浪破碎产生的近岸流。The breaking wave induced near-shore current is crucial hydrodynamics in near-shore zone.Based on the elliptic mild-slope equation for surface water waves and the 2D wave-induced current equation,the numerical model for near-shore breaking-wave-induced current was developed on unstructured grid.In the model,the spatial dispersion was made by finite volume method,and the time dispersion was made by Euler forward schemes.It was shown by numerical results that the model was effective in modeling near-shore wave-induced currents.

关 键 词：波浪 波生流 非结构化网格 有限体积法 

分 类 号：TV139.2[水利工程—水力学及河流动力学] X143[环境科学与工程—环境科学]