直叶H型潮流水轮机三维数值模拟

发布时间：2018-02-10 04:40

本文关键词： 潮流水轮机直叶翼型水动力性能数值模拟　出处：《水利水电科技进展》2017年02期 　论文类型：期刊论文

【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%。
[Abstract]:In order to investigate the influence factors of hydrodynamic performance of straight blade H type tidal current turbine, based on the theoretical analysis, a 3D model of straight blade H type power flow turbine was established by using the large-scale modeling software UG. Based on slippage grid technology, the 3D numerical simulation of turbine model is carried out by using Fluent software. Under the condition that the blade airfoil of H straight blade is constant and the density of turbine is the same, the number of runner blades and the flow rate are changed. The hydrodynamic performance of tidal turbine is analyzed. The results show that the number of blades has great influence on the hydrodynamic performance of H-type straight blade power turbine. The more the number of blades is, the smaller the output torque is. When the number of blades is 3 and the tip speed ratio is 1.63, The maximum energy gain coefficient of the turbine is 31.21.
【作者单位】：河海大学水利水电学院;河海大学文天学院;
【基金】：国家自然科学基金(51339005,51579080) 安徽省自然科学基金(1608085ME119)
【分类号】：TK730.1

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