摘要
为了探究直叶H型潮流水轮机水动力性能的影响因素,在理论分析的基础上,应用大型建模软件UG建立了直叶H型潮流水轮机三维模型,基于滑移网格技术采用Fluent软件对水轮机模型进行三维数值模拟,在保持直叶H型潮流水轮机叶片翼型一定、水轮机密实度相同的条件下,通过改变转轮叶片数以及来流速度,分析了潮流水轮机水动力性能。结果表明,叶片数对直叶H型潮流水轮机水动力性能影响很大,叶片数越多,输出扭矩值越小,当叶片数为3、叶尖速比为1.63时,水轮机最高获能系数为31.21%。
In order to explore the factors influencing the hydrodynamic performance of an H-type straight-blade tidal turbine,based on theoretical analysis,a three-dimensional model of an H-type straight-blade tidal turbine was established using large-scale modeling software UG,and three-dimensional numerical simulations were carried out using the Fluent software and the sliding mesh method. Under the conditions with the same airfoil type of H-type turbine blade and the same turbine solidity,the hydrodynamic performance of the tidal turbine was analyzed by changing the number of runner blades and inflow velocity. The results show that the number of blades has a significant effect on the hydrodynamic performance of the H-type straight-blade tidal turbine. The greater the number of blades, the smaller the output torque is. When the number of blades is three and the tip speed ratio is 1. 63,the highest turbine power coefficient is 31. 21%.
出处
《水利水电科技进展》
CSCD
北大核心
2017年第2期33-36,62,共5页
Advances in Science and Technology of Water Resources
基金
国家自然科学基金(51339005
51579080)
安徽省自然科学基金(1608085ME119)
关键词
潮流水轮机
直叶
翼型
水动力性能
数值模拟
tidal turbine
straight blade
hydrofoil type
hydrodynamic performance
numerical simulation
