Spatio-temporal intermittency in a 1D convective pattern: Theoretical model and experiments

F. Daviaud (1) , J. Lega (2, 3) , P. Bergé (1) , P. Coullet (2) , M. Dubois (1)

1 SPEC - UMR3680 - Service de physique de l'état condensé
2 INLN - Institut Non Linéaire de Nice Sophia-Antipolis
3 Department of Mathematics [University of Arizona]

We describe the occurrence of spatio-temporal intermittency in a one-dimensional convective system that first shows time-dependent patterns. We recall experimental results and propose a model based on the normal form description of a secondary Hopf bifurcation of a stationary periodic structure. Numerical simulations of this model show spatio-temporal intermittent behaviors, which we characterize briefly and compare to those given by the experiment.

Domains: Physics [physics]

F. Daviaud, J. Lega, P. Bergé, P. Coullet, M. Dubois. Spatio-temporal intermittency in a 1D convective pattern: Theoretical model and experiments. Physica D: Nonlinear Phenomena, 1992, 55 (3-4), pp.287 - 308. ⟨10.1016/0167-2789(92)90061-Q⟩. ⟨cea-01374019⟩