Transitions Between Symmetric and Nonsymmetric Regimes in Binary-Mixture Convection

We have studied the different bifurcations found for small to moderate Rayleigh number in binary-mixture convection with lateral heating and negative separation ratio (S). The present work connects the symmetric regime found for pure fluid (S=0) with the fundamentally nonsymmetric regime found for S=-1.  We give a global context as well as an interpretation for the different associations of bifurcations found, and in particular we interpret an association of codimension-two bifurcations in terms of a higher codimension bifurcation never found, to our knowledge, in the study of an extended system.

Link: http://dx.doi.org/10.1016/j.physd.2015.03.009