聚焦波浪对直立圆柱作用的试验研究  

Experimental study of focused wave on a vertical circular cylinder

作　　者：孙一艳[1] 柳淑学[1] 臧军[2] 李金宣[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116024 [2]英国巴斯大学建筑与土木工程系,英格兰巴斯 BA2 7AY

出　　处：《大连海事大学学报》2008年第1期5-9,共5页Journal of Dalian Maritime University

基　　金：国家自然科学基金资助项目(50379002);新世纪优秀人才支持计划(NCET-05-0282);长江学者和创新团队发展计划资助项目(IRT0420)

摘　　要：为研究聚焦波浪对直立圆柱墩的作用情况,根据波的传播原理,采用JONSWAP谱生成不同参数下的聚焦波浪,用波峰波谷聚焦相加减的方法分析出聚焦波浪对直立圆柱墩的二阶绕射作用强于一阶波浪的绕射作用.波浪涌高数据统计分析表明:波浪涌高随波陡及结构物相对尺度的增大而增大;圆柱周围不同受浪角度的涌高也是变化的.JONSWAP spectrum was used to generate focused wave groups of different parameters in the flume based on the principle of wave propagation to study the interaction between the focused waves and the vertical circular cylinder. The method of addition and subtraction of the wave crest and trough was used to analyze diffraction effects of focused wave. Results show that the second order effect due to the interaction is more than that of the first order. Statistical analysis shows that wave runup is increasing with the wave steepness and the relative cylinder sizes increasing, meanwhile the run-up around the circular cylinder at different wave incident direction is also changed.

关 键 词：聚焦波浪 直立圆柱墩 二阶绕射 波浪涌高 

分 类 号：TV139.2[水利工程—水力学及河流动力学]