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Nonlinear pattern and wave-number selection in convecting binary mixtures

1988; American Institute of Physics; Volume: 38; Issue: 9 Linguagem: Inglês

10.1103/physreva.38.4939

0556-2791

Jay Fineberg, Elisha Moses, Victor Steinberg,

Advanced Thermodynamics and Statistical Mechanics

We investigate the transition from weakly nonlinear to nonlinear traveling-wave states. Pattern selection due to a transition from convective to absolute instability conditions is found, in good agreement with theory. While the linear properties depend on the (boundary-dependent) threshold of convection, the weakly nonlinear properties refer back to the threshold of an infinite system.