摘要
对具有波浪能转换功能的浮式防波堤性能进行评估。根据VOF技术和有限元空间离散法建立二维数值波浪水槽,在单个圆柱形浮子研究的基础上进一步模拟波浪与双圆柱形浮子之间的相互作用,记录浮子前后的波高,研究阻尼系数对波浪透射系数和波浪能提取效率的影响。结果表明,相比于单浮子系统,阻尼系数对双浮子系统的透射系数和能量提取效率影响更大,后者对阻尼系数的变化更为敏感;在相同波况下,双圆柱形浮子的能量提取效率与单圆柱形浮子的能量提取效率不是简单的2倍关系,二者的比值在研究的范围内始终大于2,这表明浮子之间的相互作用是正面的,有助于能量的提取。
This paper assesses the performance of a floating breakwater with additional wave energy conversion function.According to volume of fluid(VOF)method and finite element spatial discrete method,we establish a two-dimensional numerical wave flume,further study the simulation of wave-double floating bodies interaction based on the study of single float’ s hydrodynamic performance,record the wave elevations front and rear of the floating body,and research the influences of the damping coefficient applied on it to the wave transmission coefficient and wave power extraction efficiency.The results show that the damping coefficient has a greater influence on the transmission coefficient and energy extraction efficiency of the double-floating system than that of the single-floating system,so double-floating system is more sensitive to variation of damping coefficient than the single-floating system.Under the same wave condition,the energy extraction efficiency of the double cylindrical float is not simply 2 times higher than that of the single cylindrical float.The ratio of the two is always greater than 2 in the scope of the study,which indicates that the interaction between the floats is positive and conducive to energy extraction.
作者
刘崇期
陈兵
胡涛
LIU Chong-qi;CHEN Bing;HU Tao(Engineering Design Institute Co.,Ltd.of CCCC Fourth Harbor Engineering Co.,Ltd.,Guangzhou 510290,China;Guangdong Provincial Engineering Research Center of Coasts,Islands and Reefs,Guangzhou 510006,China;School of Ocean Science and Technology,Dalian University of Technology,Panjin 124221,China)
出处
《水运工程》
北大核心
2019年第7期44-48,共5页
Port & Waterway Engineering
基金
国家自然科学基金项目(51761135011、51679036)
关键词
波浪能转换装置
浮式防波堤
二维数值波浪水槽
阻尼系数
波浪能提取效率
波浪透射系数
wave energy converter
floating breakwater
two-dimensional numerical wave flume
damping coefficient
wave power extraction efficiency
wave transmission coefficient
