摘要
为了探究风轮结构参数对带导流板的一体化风机的气动性能影响规律,采用3D瞬态RNG k-ε湍流模型和滑移网格模拟风轮不同工况下,重叠比、叶片弯度以及导流板长度和安装角度对转矩系数和风能利用率的影响,分析了风轮内部流场变化,选取了最优参数进行综合仿真分析并进行了实验验证。结果表明:在重叠比为0.1,弯度为0.35时风机风能利用率达19%,比sandia实验室的风机提高3.5%;导流板有助于改善风轮内部流场,提高风机风能利用率。
In order to investigate the influence of wind wheel structural parameters on .the aerodynamic performance of integrated turbine with a baffles,the influence of overlap ratio,blade camber,length of guide plate and installation angle on torque coefficient and wind energy utilization ratio under different working conditions of simulated wind turbine are simulated by 3D transient RNG k-epsilon turbulence model and slip grid.The optimal parameters are selected for comprehensive simulation analysis and experimental verification.The results show that the wind energy utilization rate of the turbine is 19% when the overlap ratio is 0.1 and the bend is 0.35,which is 3.5%higher than that in the Sandia laboratory.The guide plate is helpful to improve the internal flow field of the wind turbine and improve the wind energy utilization rate of the turbine.
作者
陈林
莫秋云
尹佳蓓
刘伟豪
蒋立
廖智强
CHEN Lin;NO Qiuyun;YIN Jiabei;LIU Weihao;JIANG Li;LIAO Zhiqiang(Guilin University of Electronic Technology,Guilin Guangxi 541004,China)
出处
《机械设计与研究》
CSCD
北大核心
2019年第1期205-209,共5页
Machine Design And Research
基金
国家自然科学基金资助项目(51465010)
桂林电子科技大学研究生教育创新计划(2017YJCX10)
桂林电子科技大学广西信息科学实验中心(20130325)资助项目
关键词
一体化风机
流场分析
气动性能
integrated wind turbine
flow field analysis
aerodynamic performance