预言的风汽轮机 S825 机翼空气动力学的性能对改进它的精力效率并且减少它的环境影响关键。在这份报纸,风汽轮机 S825 机翼上的数字模拟在不同攻击角度与 k- 骚乱模型一起被进行。由与试验性的数据作比较,修改 k- 模型的一个新方法被建议。修改功能被建议基于液体旋转和变丑在方程限制生产术语。当机翼工作时,这个方法改进狂暴的粘性和减少分开区域逍遥法外的分开条件。预兆的精确性能被使用修改的 k- 骚乱模型改进。
Predicting wind turbine S825 airfoil's aerodynamic performance is crucial to improving its energy efficiency and reducing its environmental impact. In this paper, a numerical simulation on the wind turbine S825 airfoil is con- ducted with k-to turbulence model at different attack angles. By comparing with experimental data, a new method of modifying k-to model is proposed. A modifying function is proposed to limit the production term in ω equation based on fluid rotation and deformation. This method improves turbulent viscosity and decreases separating re- gion when the airfoil works at large separating conditions. The predictive accuracy could be improved by using the modified k-to turbulence model.