Chaotic Dynamics of an Airfoil with Higher-Order Plunge and Pitch Stiffnesses in Incompressible Flow

Figure 6

Phase portraits in the X-Y plane for various values of : (a) point attractor; (b) period-1 limit cycle; (c) period-2 limit cycle; (d) chaotic attractor.

(a)

(b)

(c)

(d)