Spatio-Temporal Chaos through Ramp-induced Eckhaus Instability

H. Riecke, H.-G. Paap

Research output: Contribution to journalArticlepeer-review

12 Scopus citations


It is demonstrated that spatio-temporal chaos can be induced by applying smooth spatial ramps to systems which under homogeneous conditions exhibit only steady spatially-periodic structures. This dynamics is investigated by numerical simulations of a simple reaction-diffusion model. They show that nonadiabatic effects, which are not contained in the usual amplitude equations, are relevant in the dynamics. It is expected that such chaotic dynamics can also be observed in Taylor vortex flow, convection, directional solidification and similar systems.
Original languageEnglish
Pages (from-to)433-438
JournalEurophysics Letters
StatePublished - 1991


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