摘要
振荡水柱(Oscillating water column,OWC)波浪能采集装置气室底部引浪通道对波浪能采集效率具有重要意义。基于流体动力学分析(CFD)技术研究OWC装置气室底部轮廓的优化问题,在ICEM CFD仿真分析系统中建立4种气室底部结构的二维引浪通道模型,应用FLUENT软件流体分相处理及明渠造波法和数值沙滩消波方法建立基于线性波浪理论的二维数值波浪水槽。仿真分析显示,圆形底部轮廓OWC气室较其它3种轮廓结构的气室墙壁受到压力小,形成的反射波小,波能损失小,气室出口速度快由此形成的气室压力大,波能转换效率高。
The bottom of the chamber wave channel is a key structure in the oscillating water column （OWC） wave harvesting device, especially for the wave energy conversion efficiency. The bottom profile is optimized with the CFD method. The four types of structure are modeled so as to research the two-dimensional （2D） wave channel in the ICEM-CFD simulation analysis system. The 21） values wave sink based on the linear wave theory is established with the FLUENT software fluid phase separation and open channel wave method and numerical beach wave elimination method. The results of simulation analysis show that the air chamber with a circular bottom profile has a smaller wall pressure, a smaller reflected wave and less wave energy loss, with the air flowing out faster in the outlet than in the other three contour structures. The wave energy conversion efficiency is higher because the pressure is greater in the OWC chamber.
作者
杜小振
柳叙强
文傲
王国全
朱尙
DU Xiao-zhen, LIU Xu-qiang, WEN Ao, WANG Guo-quan, ZHU Shang(College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, Shandong Province, Chin)
出处
《海洋技术学报》
2018年第1期102-107,共6页
Journal of Ocean Technology
基金
中国博士后科学基金资助项目(2015M582113)
山东省自然科学基金资助项目(ZR2016EEM23)
关键词
振荡水柱
引浪通道
海洋能
CFD
expendable
oscillating water column （OWC）
wave channel
marine energy
CFD
