基于波能守恒方程模拟近岸波流场  

Numerical simulation of wave current field in coastal zone based on wave energy conservation equation

作　　者：任春平[1] 邹志利[2] 

机构地区：[1]太原理工大学水利科学与工程学院,太原030024 [2]大连理工大学海岸及近海工程国家重点实验室,辽宁大连116024

出　　处：《大连海事大学学报》2011年第1期13-17,共5页Journal of Dalian Maritime University

基　　金：国家自然科学基金资助项目(50479053;10672034)

摘　　要：基于波能守恒方程对平直斜坡上近岸波浪场以及近岸波浪斜向入射破碎后所产生的沿岸流场进行数值模拟.鉴于平直斜坡地形较简单,便于简单计算,利用基于波能守恒方程建立的波浪场数学模型计算得到波高的变化,从而利用Longuet-Higgins计算辐射应力.在此基础上,利用近岸波流场数学模型对实验波况下的波流场进行模拟,并将数值模拟结果与实验结果进行比较.结果表明,该模型可以很好地模拟近岸波流场.The numerical models of wave field and wave current field based on wave energy conservation equation were built because of the regular shore topography and convenient calculation.Wave height could be obtained with the wave field model,and the radiation stress could be calculated by Longuet-Higgins＇ equation.The wave current field in the case of laboratory was simulated by the proposed model on the basis of the calculated radiation stress,and the comparison was made between the numerical results and experimental results,which shows that the proposed model can simulate the wave current field well.

关 键 词：波浪水力学 沿岸流 波能守恒方程 波浪破碎 辐射应力 

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]