摘要
基于传统振荡水翼运动模型提出一种适用于垂直轴振荡水翼潮流能发电装置的摆式运动模型，并建立相应的数学模型。利用流体动力学软件Fluent软件建立该运动模型的网格模型，分析翼型NACA0015在不同运动参数下的水动力性能及能量捕获效率，并从水翼在运动过程中攻角的变化和漩涡结构方面分析振荡频率和俯仰振幅对水翼水动力性能的影响。结果表明，在小的振荡频率下，水翼的升沉振幅是影响能量提取效率的主要因素，随着频率的增加，升沉振幅对能量提取效率的影响减弱；在较大的频率下，俯仰振幅对水翼能量提取效率的影响更为明显。在适当的运动参数下，水流动能转化为水翼动能的效率可达30％。
The present study proposes a novel non-sinusoidal swing motion model which applies to vertical axis flapping foil power harvesting device, and establishes the corresponding mathematical model. The hydrodynamic performance and energy-extract efficiency of the swing motion model were investigated through unsteady two-dimensional laminar-flow numerical simulation utilizing the commercial finite volume computational fluid code Fluent based on dynamic and moving mesh. The effects of pitching amplitude and oscillating frequency on the hydrodynamic and energy extraction performance are evaluated in terns of angle of attack and vortex structure. It is found that heaving amplitude is the main factor affecting energy extraction efficiency under small oscillating impact on large oscillation frequency. Energy conversion efficiency proper frequency. The pitching amplitude has more obvious could reach up to 30% if the oscillation frequency is
作者
马鹏磊
王勇
刘海宾
谢玉东
Ma Penglei1,2, Wang Yong1,2, Liu Haibin1,2, Xie Yudong1,2(1. School of Mechanical Engineering, Shandong University, Ji＇nan 250061, China; 2. Key Laboratory of High-Efficiency and Clean Mechanical Manufacture （ Shandong University）, Ministry of Education, Ji＇ nan 250061, China)
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2018年第3期665-672,共8页
Acta Energiae Solaris Sinica
基金
国家自然科学基金(51475270)
山东省科技发展计划(2014GGX104014)
关键词
振荡
水翼
能量提取
水动力
flapps
hydrofoils
energy harvesting
hydrodynamic
