ZHANG Zhiyong, WANG Tuantuan, CHEN Zhihua, et al. The effect of blowing/suction jet on the aerodynamic performance of airfoil NACA0012 at low Reynolds number[J]. 2020, 38(1): 58-65.
ZHANG Zhiyong, WANG Tuantuan, CHEN Zhihua, et al. The effect of blowing/suction jet on the aerodynamic performance of airfoil NACA0012 at low Reynolds number[J]. 2020, 38(1): 58-65.DOI: 10.7638/kqdlxxb-2018.0070.
The effect of blowing/suction jet on the aerodynamic performance of airfoil NACA0012 at low Reynolds number
Based on large eddy simulation obtained from Favre filtering
the numerical simulations for the blow/suction jet on the upper surface of airfoil NACA0012 have been conducted at Reynolds number
Re
=10
4
and angle of attack
α
=6°. The effects of jet location and velocity on airfoil aerodynamic performance have been discussed from the variations of streamlines pattern
velocity contour
upper and lower surface pressure coefficients
and displacement thickness of upper surface boundary layer. The results show that
the jet location has a great influence on the aerodynamic performance of the airfoil and the control effects of suction jet is
obviously better than that of blowing jet. For the suction jet
the front edge suction can effectively increase the lift and reduce the drag
and it can also suppress flow separation of airfoil
and restrain the disturbance of aerodynamic parameters of airfoil during flight. The optimum suction location gradually moves downstream with the increase of suction velocity. Relatively
the control effect of blowing jet on aerodynamic coefficient of airfoil is not good enough. However
the blowing jet at the middle and rear edge can reduce the aerodynamic disturbances
and the larger the blowing velocity
the more obvious its effect.
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references
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