摘要
确定垂直轴风力机(Vertical-axis Wind Turbines,VAWTs)的放大准则是研发大型垂直轴风力机和预测性能的关键技术。首先,分析了采用单一无量纲参数恒定的放大准则(叶尖速比恒定、雷诺数恒定)研发大型机组的研究现状,讨论了此准则在放大过程中的不足;其次,基于理论分析梳理了双参数耦合恒定的放大准则,并分析了采用雷诺数-叶尖速比耦合恒定、叶尖速比-雷诺数耦合恒定的放大准则在风力机放大过程中所取得的研究成果,进一步探讨了耦合恒定放大准则的准确性及局限性,发现耦合恒定的放大准则可以获得气动性能相似性较高的大型垂直轴风力机。
Determining the scaling criterion of Vertical Axis Wind Turbines(VAWTs)is crucial to the development of large-scale VAWTs and performance prediction.First,the research status of developing large units using a single dimensionless parameter with constant scaling criteria(constant tip speed ratio,constant Reynolds number)is analyzed.The shortcomings of this criterion during the scaling process are discussed.Next,it organizes a dual-parameter coupled constant scaling criterion based on theoretical analysis and examines the research outcomes achieved using the Reynolds number-tip speed ratio coupled constant and tip speed ratio-Reynolds number coupled constant scaling criteria during the wind turbine scaling process.Furthermore,the accuracy and limitations of the coupling-constant scaling criteria were explored.It was found that the coupling-constant scaling criteria can lead to the development of large-scale vertical axis wind turbines with a relatively high similarity in aerodynamic performance.
作者
李银然
柳银环
张苏彩
魏魁
LI Yin-ran;LIU Yin-huan;ZHANG Su-cai;WEI Kui(School of Energy and Power Engineering,Lanzhou University of Technology,Lanzhou 730050,China;Gansu Province Wind Power Engineering Technology Innovation Center,Lanzhou 730050,China)
出处
《液压气动与密封》
2026年第1期17-24,共8页
Hydraulics Pneumatics & Seals
基金
国家自然科学基金(52466015)
甘肃省高等学校产业支撑计划(2022CYZC-27)。
关键词
大型化
垂直轴风力机
无量纲参数
放大准则
large-scale
vertical-axis wind turbines
dimensionless parameter
scaling criterion
