Influence of hybrid flow control on aerodynamic characteristics of wind turbine blades
Wind turbine blade stall will reduce wind turbine output power.In this paper,the aerodynamic analysis model of NREL Phase Ⅵ wind turbine was established based on Fluent software,and the pressure coefficient and power characteristics of the wind turbine blade section were calculated at 13 m/s wind speed,and the accuracy of the aerodynamic analysis method of the wind turbine was verified by comparing with the wind tunnel experimental data.Then,the active jet and vortex generator(VGs)were coupled to the blade of the wind turbine.It was found that the power of the wind turbine increased first and then decreased with the increase of the width of the jet hole and the height of the vortex generator.A wind turbine aerodynamic analysis model with mixed flow control was established to study the influence of the chord distance between jet and vortex generator and the height of VGs at the trailing edge on the aerodynamic characteristics of the wind turbine.The results show that the wind turbine output power reaches the highest when the distance is 0.3C(C is the chord length of airfoil),and the increase is 6.61%compared with the single jet control.When the trailing edge VGs height is 15 mm,the hybrid flow control has the best effect and the highest fan power.
wind turbine blade stalljeteddy current generatorhybrid flow controlpower features
万方数据
维普
