单波形底水面防波堤消波性能研究  

Wave attenuation performance of free-surface breakwaters with single wave-contour bottom

作　　者：王明玉 王传鹏 吴静萍[2] WANG Ming-yu;WANG Chuan-peng;WU Jing-ping(No.2 Engineering Co.,Ltd.of CCCC First Harbor Engineering Co.,Ltd.,Qingdao,Shandong 266071,China;School of Naval Architecture,Ocean and Energy Power Engineering,Wuhan University of Technology,Wuhan,Hubei 430063,China)

机构地区：[1]中交一航局第二工程有限公司,山东青岛266071 [2]武汉理工大学船海与能源动力工程学院,湖北武汉430063

出　　处：《中国港湾建设》2024年第12期43-49,共7页China Harbour Engineering

摘　　要：为了提高箱型水面防波堤的消波性能,将箱型水面防波堤平底改造为波形底,提出了一种单波形底水面防波堤,对单波形底防波堤进行物理模型试验,通过改变定位方式、相对吃水和波陡来探究其消波性能;运用Fluent软件,在考虑流体黏性条件下对固定模型进行数值模拟,并分析模型的流场细节,探索单波形底模型的消波机理。结果表明:(1)单波形底水面防波堤在固定方式下的消波性能要明显好于在锚系方式下的消波性能;(2)相对吃水变大,单波形底防波堤的消波性能提高;(3)波陡对单波形底防波堤的影响较小。单波形底防波堤比平底防波堤的消波性能要好,增加的消波效果高达50%左右。In order to improve the wave attenuation performance of a box-type free-surface breakwater,the bottom contour of the box is transformed from flat to wave-contour bottom,so a kind of single wave-contour bottom free-surface breakwater is proposed.The physical model tests are carried out on single wave-contour bottom breakwater,and the wave attenuation performance of the model is studied by changing the location method,draft depth and wave steepness.By using Fluent software,the fixed model is numerically simulated under the condition of fluid viscosity,and the flow field details of the model are analyzed to explore the wave attenuation mechanism of the single wave-contour bottom model.The results show that:(1)The wave attenuation performance of the single wave-contour bottom breakwater in the fixed mode is significantly better than that in the anchored mode;(2)As the relative draft increases,the wave attenuation performance of the single wave-contour bottom breakwater improves.(3)The effect of wave steepness on the single wave-contour bottom breakwater is small.The wave attenuation performance of a single wave-contour bottom breakwater is better than that of a flat-bottom breakwater,and the increase of wave attenuation effect is up to 50%.

关 键 词：水面防波堤 物理模型试验 数值模拟 消波性能 

分 类 号：U656.2[交通运输工程—港口、海岸及近海工程]