摘要
波浪进入浮标中空气室形成振荡水柱捕获波浪能,同时浮标受到波浪冲击作用产生垂荡和摇晃,削弱水柱相对位移。采用含增重环的双层凹面阻尼板抑制浮标运动和增强气室压强。基于微振幅波理论和牛顿第二定律推导阻尼板增强振荡水柱式浮标波浪能采集理论模型,计算浮标垂荡位移和气室空气压强特性。借助AQWA软件建立阻尼板和振荡水柱浮标有限元仿真模拟,模拟波浪对浮标水动力影响。采用Fluent软件的流体体积方法和明渠造波方法实现了气室压强仿真并与理论计算比较,验证模型的准确性。仿真结果表明阻尼板可有效增加附加质量和浮标惯性,抑制浮标运动,从而提升气室水柱的相对运动。理论计算气室空气压强参数,为阻尼板振荡水柱式浮标波浪能采集系统和绿色低碳能源转换结构设计提供基础。
The oscillating water column buoy utilizes wave energy by channelling waves into an air chamber,inducing oscillations within the water column.However,wave impact also causes buoy oscillation and rocking,which reduces the relative water column displacement.To address this,a double-layer concave damping plate with a weight-enhancing ring was implemented to stabilize buoy movement.A double-concave damping plate with a weight-enhancing ring was used to inhibit the movement of the floating buoy and increase the pressure of the air chamber.Based on the small amplitude wave theory and Newton's second law,a theoretical model was developed to analyze wave energy capture by the damping plate-enhanced oscillating water column buoy,calculating buoy oscillations and air chamber pressure characteristics.The finite element simulations,conducted using AQWA software,replicated the wave-induced hydrodynamic effects on the buoy.Air chamber pressure was simulated via Fluent software's fluid volume method and open channel wave-making method,and the model's accuracy was validated against theoretical calculations.The simulation results show how effective the damping plate is in limiting buoy motion,raising mass and buoy inertia,and improving water column stability in the air chamber.The theoretical calculation of the air chamber air pressure parameters provides a basis for the design of the damping plate oscillating water column buoy wave energy harvesting system and the green low-carbon energy conversion structure.
作者
杜小振
王文秀
郭东兴
李驰骋
刘晓彤
范开源
DU Xiao-zhen;WANG Wen-xiu;GUO Dong-xing;LI Chi-cheng;LIU Xiao-tong;FAN Kai-yuan(College of Mechanical and Electronic Engineering,Shandong University of Science and Technology,Qingdao266590,China)
出处
《科学技术与工程》
北大核心
2025年第11期4459-4466,共8页
Science Technology and Engineering
基金
山东省自然科学基金(ZR2021ME111)。
关键词
阻尼板
波浪能
水动力分析
振荡水柱
浮标
damping plate
wave energy
hydrodynamic analysis
oscillating water column
floating buoy
