孤立波与直墙式多孔介质结构相互作用数值分析  

The interaction of the solitary wave with a vertically walled porous structure

作　　者：宋帅[1] 尤云祥[1] 魏岗[1] 

机构地区：[1]上海交通大学船舶海洋与建筑工程学院,上海200030

出　　处：《海洋工程》2007年第4期7-14,共8页The Ocean Engineering

基　　金：国家自然科学基金资助项目(10572092)

摘　　要：以连续性方程和雷诺平均方程为控制方程,用k-ε模型封闭方程组,采用VOF方法追踪自由面,建立了具有造波和消波功能的二维孤立波数值水槽。并基于改进的Darcy多孔介质模型研究了二维孤立波与直墙式多孔介质结构的相互作用问题。数值分析了孤立波与直墙式多孔结构相互作用引起的流场和波形变化特性,并与文献中的实验结果进行了比较,数值结果与实验结果吻合良好。A 2D numerical solitary wave flume with the ability of wave generation and absorption is developed based on the Reynolds-Averaged Navier-Stokes（RANS） equations closed by employing the k-ε model and the volume of fluid（VOF） method.Moreover,the interaction of the solitary wave with a vertically walled porous structure is considered based on the modified Darcy＇s porous media model.The characteristics of the velocity field and the variation of the wave profiles induced by the interaction between the solitary wave and the porous structure are numerically analyzed.The comparison with the corresponding experimental results is given,showing a good agreement.

关 键 词：雷诺平均方程 孤立波 多孔介质 速度场 

分 类 号：U661.1[交通运输工程—船舶及航道工程]