相交圆柱摆式波能装置俘获效率数值分析
Numerical Analysis on Efficiency of a Parallel-Intersecting-Cylinder Flap Wave Energy Converter
宋吉宁 1邓钰瑶 2郝一星 2蒋学炼1
作者信息
- 1. 天津城建大学土木工程学院,天津 300384;天津城建大学天津市软土特性与工程环境重点实验室,天津 300384
- 2. 天津城建大学土木工程学院,天津 300384
- 折叠
摘要
摆式波能装置具有结构简单和转化效率高等特点,本文应用AQWA软件基于势流理论对相交圆柱摆式波能装置进行了数值模拟研究,分析了轴间距比、结构阻尼、净浮力比、水深、波浪特性及吃水深度等主要参数对相交圆柱摆式波能装置俘获效率的影响,并与直板摆式波能装置的俘获效率进行了对比.结果表明:同样条件下,相交圆柱摆式波能装置往往比直板摆式波能装置的俘获效率更高;在研究范围内,轴间距比越大俘获效率越高;潮汐导致的水深变化对底铰摆式波能装置的俘获效率具有明显的影响,在工程应用中应采取适当的措施进行处理.
Abstract
The flap-type wave energy converters have attracted more attentions for its structural simplicity and high capture efficiency.In this paper,a kind of parallel-intersecting-cylinder flap wave energy converters was studied using AQWA based on the potential flow theory.The capture efficiency of the parallel-intersecting-cylinder flap converters was investigated by changing space ratio of the cylinders,structural damping,net buoyancy ratio,water depth,wave height,draft depth and tidal level,which was compared with plate flap converters as well.The results show that the performance of the parallel-intersecting-cylinder flap converters is generally better than that of the plate flap one.Capture efficiency of the converter increase as the space ratio of the cylinders within the scope of this paper.The change of water depth caused by the tide has a significant impact on the capture efficiency,which should be considered carefully in practical application.
关键词
相交圆柱摆/俘获效率/波能转换/数值模拟Key words
parallel-intersecting-cylinder flap/capture efficiency/wave energy conversion/numerical simulation引用本文复制引用
基金项目
国家自然科学基金(51509178)
天津市软土特性与工程环境重点实验室开放基金(12030136)
出版年
2024
NETL
NSTL
万方数据