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

Figure 7

Coexisting attractors for different values of : for  = 5 and initial conditions for (a, b) blue [−0.012, −0.055, 0.009, −0.125]; red [−0.13, 0, 0.09, 0]; for  = 7 and initial conditions for (c, d) blue [−0.09, 0.003, 0.13, 0.22]; red [−0.17, 0.02, 0.13,−0.02].

(a)

(b)

(c)

(d)