The simulation results on a blinking traveling wave (BTW) state with binary fluid convection in a rectangular cell was presented. The numerical simulations were made by using the two-dimensional perturbation equations...The simulation results on a blinking traveling wave (BTW) state with binary fluid convection in a rectangular cell was presented. The numerical simulations were made by using the two-dimensional perturbation equations of full hydrodynamic equations. The BTW or sloshing traveling wave state is a type of modulated traveling wave (MTW) generated by the motion of a source defect which originates from the reflection effect at the end walls and depends on the reduced Rayleigh number. By comparing the profiles of convection, the BTW state is realized on a weakly nonlinear branch with a small amplitude and the localized traveling wave (LTW) state is realized on a full nonlinear branch with a large amplitude. They have different dynamic behavior. A discontinuous jump from the BTW branch to the stable LTW branch takes place when the oscillatory period lengthens and the amplitude grows above the upper critical value of the BTW.展开更多
文摘The simulation results on a blinking traveling wave (BTW) state with binary fluid convection in a rectangular cell was presented. The numerical simulations were made by using the two-dimensional perturbation equations of full hydrodynamic equations. The BTW or sloshing traveling wave state is a type of modulated traveling wave (MTW) generated by the motion of a source defect which originates from the reflection effect at the end walls and depends on the reduced Rayleigh number. By comparing the profiles of convection, the BTW state is realized on a weakly nonlinear branch with a small amplitude and the localized traveling wave (LTW) state is realized on a full nonlinear branch with a large amplitude. They have different dynamic behavior. A discontinuous jump from the BTW branch to the stable LTW branch takes place when the oscillatory period lengthens and the amplitude grows above the upper critical value of the BTW.
