新型消能结构物边界形状对波浪反射特性影响研究  

Influence of boundary effect on hydrodynamic reflection performance of new wave-dissipating structure

作　　者：田正林 孙昭晨[1] 梁书秀[1] TIAN Zhenglin;SUN Zhaochen;LIANG Shuxiu(State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China)

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116024

出　　处：《海洋工程》2018年第6期27-37,57,共12页The Ocean Engineering

基　　金：国家自然科学基金资助项目(51779038);国家自然科学基金海洋公益性项目(201405025-1)

摘　　要：为了使消能结构在多频率波浪作用下都能有一个较低的反射率,提出一种新型消能结构——双层板与双列开孔结构复合结构。考虑了面积约束条件下结构物边界对波浪反射特性的影响,运用数值模拟方法模拟了波浪与结构物的相互作用,计算了消能结构在不同边界形状下的反射系数,对比波浪反射系数结果获得了最佳的消能结构物边界形状。反射系数研究结果及消能结构周围流场的分析表明:消能结构物的反射特性及流场特性对波候有一定的依赖性,也依赖于消能结构物的边界特性。因此开展消能结构物边界排布及形状的研究是很有必要的。A new wave-dissipating structure composed of horizontal twin-plate and double-layer perforated structure is proposed to make its reflection coefficients always maintain a lower level under multiple frequency wave action.The influence of the geometry of the wave-dissipating structure is studied numerically with the precondition that the area of the structure is unchanged.The wave reflection coefficients are calculated and used to obtain the optimal geometry of the wave-dissipating structure.By analyzing the reflection coefficients and the flow field around the wave-dissipating structure,it is found that the structure reflection performance and the flow field not only depend on wave climate,but also depend on the geometry boundary of the wave-dissipating structure.Therefore,it is necessary to study the influence of the boundary configuration and the geometry of the wave-dissipating structure.

关 键 词：新型消能结构 双层板 双列开孔结构 反射系数 消浪性能 

分 类 号：TV139.2[水利工程—水力学及河流动力学]