Hysteresis in the Static Aerodynamic Characteristics of a Curved-Profile Wing

摘要

The effect of profile asymmetry, Reynolds number, and angles of deflection of high-lift devices on the hysteresis loop shape in the dependences of the static aerodynamic forces and moments on angles of attack is studied. These dependences are measured in wind tunnels during testing of rectangular wings of equal thickness but different curvature. The wings have deflectable flaps spanning the wing trailing edge.