吃水深度对振荡水柱式波浪能发电浮标水动力学性能的影响
Study on the influence of draft on hydrodynamic performance of oscillating water column wave power buoy
周逸伦 1张亚群 2刘天骄 1蒋鹏 1盛松伟2
作者信息
- 1. 昆明船舶设备研究试验中心,云南 昆明 650051
- 2. 中国科学院广州能源研究所,广东 广州 510640;中国科学院可再生能源重点实验室,广东 广州 510640
- 折叠
摘要
波浪能浮标的能量转换效率由其水动力学性能决定.由设计经验可知,浮标的水动力学性能受吃水深度的影响较大.文章以波浪能浮标为研究对象,开展对浮标吃水深度的水动力学性能研究.首先介绍浮标的结构及工作原理;其次建立浮标在 5 种吃水深度工况下的仿真模型,进行数值模拟计算,获得浮标在设计工况下的水动力学参数及能量转换效率;最后进行物理模型试验,研究了6 种吃水深度工况下浮标的俘获宽度比(RCW),并与仿真结果进行对比分析.结果表明:当吃水深度为75 mm时,模型RCW最大为56.8%;吃水深度对浮标RCW峰值分布影响较大;在特定的气动阻尼下,仿真模拟结果与物理模型试验结果拟合度较高,误差小于5%.
Abstract
The energy conversion efficiency of wave energy buoys is determined by their hydrodynamic performance.From design experience,it is known that the hydrodynamic performance of buoys is greatly affected by the draft depth.The article takes wave energy buoys as the research object and conducts a study on the hydrodynamic performance of buoy draft depth.Firstly,introduce the structure and working principle of the buoy;Secondly,establish simulation models of the buoy under five different draft depth conditions,conduct numerical simulation calculations,and obtain the hydrodynamic parameters and energy conversion efficiency of the buoy under design conditions;Finally,physical model experiments were conducted to study the capture width ratio(RCW)of buoys under six different draft conditions,and compared and analyzed with simulation results.The results show that when the draft depth is 75 mm,the maximum RCW of the model is 56.8%;the draft depth has a significant impact on the peak distribution of buoy RCW;under specific aerodynamic damping,the simulation results fit well with the physical model test results,with an error of less than 5% .
关键词
波浪能/振荡水柱/俘获宽度比/数值模拟/吃水深度Key words
wave energy/oscillating water column/capture width ratio/numerical simulation/buoy draft引用本文复制引用
基金项目
国家重点研发计划(2019YFB1504402)
海洋可再生能源资金项目(GHME2017SF01)
海洋可再生能源资金项目(GHME2017YY02)
2020年广东省海洋经济发展专项项目(粤自然资合[2020]022号)
出版年
2024
国家科技期刊平台
NSTL
万方数据