Static Aeroelastic Correction for Wind Tunnel Results of Wing Model with CFD

Based on static aeroelasticity theory,the aeroelasticity behavior of F4 wing in pressurized wind tunnel is simulated numercially to analyze the influence of the elastic deformation on the model's aerodynamic characteristics.The rules how bend deflection,twist angle change with wind tunnel experimental dynamic pressure or angles of attack are investigated.The results show that: typical sweptback wing,like F4 Wing,lead to the elastic equivalent angles of attack becoming smaller and lift coefficient decreasing.The bend deflection and twist angles of attack are positive linear with wind tunnel experimental dynamic pressure,and increase with angles of attack nonlinear.In conclusion,it is feasible to correct static aeroelasticity effect with CFD in wind tunnel experiments.Though the advantage is not evidence with such rigid wing,it will be widely used on high aspect ratio and high flexibility wing.