Research Article

Derivation of ODEs and Bifurcation Analysis of a Two-DOF Airfoil Subjected to Unsteady Incompressible Flow

Figure 3

(a) Bifurcation diagrams showing both stable and unstable solutions for pitch motion, (b) expanded view of partial region from (a). , stable fixed point; , unstable fixed point; —, stable limit cycle; - - - , unstable limit cycle.
248930.fig.003a
(a)
248930.fig.003b
(b)