近岸波浪破碎区不规则波浪的数值模拟  

Numerical simulation of irregular water waves in coastal surf zones

作　　者：唐军[1] 沈永明[1] 崔雷[1] 邱大洪[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》2008年第2期147-152,共6页

基　　金："九七三"国家重点基础研究发展计划资助项目(2006CB403302);国家自然科学基金资助项目(50709004;50779006);上海交通大学海洋工程国家重点实验室研究基金资助课题

摘　　要：基于近岸不规则波浪传播的抛物型缓坡方程和两类波浪破碎能量损耗因子,对近岸波浪破碎区不规则波浪的波高分布进行了数值模拟,并结合实验结果对数值模拟结果进行了验证分析,结果表明采用两类波浪破碎能量损耗因子所模拟的破碎区波高与实测值均吻合良好,波浪破碎能量损耗因子及波浪破碎指标对破碎区波浪波高分布影响较明显。On the basis of the parabolic mild-slope equation for irregular water waves and two wave energy dissipation factors due to breaking wave effect, the distribution of breaking wave heights has been numerically simulated, and the numerical results have been analyzed and validated by experimental data. It is shown that the two wave energy dissipation factors due to wave breaking effect adopted here can both achieve a good agreement between the numerical and experimental results, and the breaking water wave energy dissipation factor and breaking wave index parameter play important roles on the distribution of breaking wave heights in surf zones.

关 键 词：不规则波浪 抛物型缓坡方程 破碎波 波能损耗 

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]