摘要
文章以20 kW水平轴潮流能水轮机为例,分别选取正常工况和极限工况下的波浪参数,运用计算流体动力学软件Fluent对线性波作用下的水平轴潮流能水轮机的水动力性能进行了数值模拟。数值模拟结果表明:水平轴潮流能水轮机在波浪作用下会受到交变的海洋环境载荷的作用,在该环境载荷的作用下,水轮机的各项水动力性能参数发生周期性变化;正常工况下,水轮机水动力性能参数的波动幅度为3%左右,波浪对水轮机的影响不大;极限工况下,水轮机水动力性能参数的波动幅度为35%左右,波浪对水轮机的影响很大。波浪对水轮机的影响不容小觑,对此,工程上应尽量避开波浪影响区或采取适当的措施提高水平轴潮流能水轮机叶片和支撑结构的疲劳强度,以减小波浪对水平轴潮流能水轮机性能的影响和破坏。
Taking the 20 kW horizontal axis turbine driven by tidal current energy as research object, choosing the wave parameters under regular condition and limited condition, using the software of computational fluid dynamics（CFD） to simulate hydrodynamic performance of the horizontal axis tidal current energy turbine under the effect of linear wave. The numerical simulation results show that the tidal horizontal turbine suffered alternating marine environmental loads and all sorts of turbine＇s hydraulic performances fluctuate periodically. The turbine＇s hydrodynamic performances fluctuate 3% periodically under regular condition; The turbine＇s hydrodynamic performance fluctuates 35%, influenced by wave seriously under limited condition. So appropriate measures should be taken to improve the fatigue strength of the blade and structural support of horizontal axis tidal current energy turbine or avoiding the region effected by wave seriously to reduce destruction caused by wave.
作者
黎江
王树杰
司先才
袁鹏
Li Jiang;Wang Shujie;Si Xiancai;Yuan Peng(Engineering of College, Ocean University of China, Qingdao 266100, China)
出处
《可再生能源》
CAS
北大核心
2017年第11期1732-1738,共7页
Renewable Energy Resources
基金
国家自然科学基金项目(51479185)
山东省重点研发计划项目(2015GSF115019)
关键词
潮流能水轮机
波浪
数值模拟
正常工况
极限工况
tidal water turbine
wave
numerical simulation
regular condition
limited condition
