为探讨风机塔筒尾涡场及流体力特性，基于CFD方法对6种典型风速（U=10、12、14、16、18、20 m/s）的三维塔筒尾涡场特性进行了数值仿真分析，对比不同风速下的塔筒尾涡场及流体力。结果表明，在塔筒自由端面上产生的漩涡长度约等于自由端面直径，在纵切面脱落的漩涡呈现倾斜状态，自由端面后缘产生的梢涡向下旋转并延伸。随着风速增加，升阻力周期减小，各风速下斯特劳哈尔数均在0.31左右。本文可为风机塔筒风致振动抑制技术提供基础数据支撑。
In order to explore the characteristics of tower vortex field and fluid force of wind turbine tower, numerical simulation based on CFD（Computational Fluid Dynamics） method is carried out to analyze the characteristics of three-dimensional tower vortex field for six typical wind speeds (U=10, 12, 14, 16, 18, 20 m/s), and to compare the tower vortex field and the fluid force in the tower under different wind speeds. The results show that the length of the vortex generated on the free end face of the tower is about equal to the diameter of the free end face, the vortex shedding in the longitudinal section shows an inclined state, and the tip vortex generated at the trailing edge of the free end face rotates downward and extends. With the increase of wind speed, the uplift resistance period decreases, and the Strauhal number is around 0.31 at all wind speeds. This study can provide basic data support for the wind-induced vibration suppression technology of wind turbine tower.
2025,47(17): 83-88 收稿日期：2024-10-25
DOI：10.3404/j.issn.1672-7649.2025.17.014
分类号：P751
基金项目：国家自然科学基金资助项目（52201334）
作者简介：张文耀(1987-),男,硕士,高级工程师,研究方向为海上浮式风机安装与运维
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