Dynamic behavior of low-dimensional model for double diffusive natural convection

From the viewpoint of a nonlinear dynamical system, an understanding of the physics in the double diffusive natural convection is crucial in present-day engineering and natural science. We discuss the dynamic behavior of the intermittent chaos region in the double diffusive natural convection produced by a fifth-order nonlinear dynamical system. After the intermittent chaos region become complex with increasing normalized Rayleigh number, it undergoes a significant transition to steady-state through reverse period-doubling bifurcation cascade. The dynamic properties of the phase space are investigated in detail in this presentation, which have not been reported in previous theoretical research on dynamical systems.