Interaction of localized pulses of traveling-wave convection with propagating disturbances
- 1 December 1990
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 42 (12) , 7504-7506
- https://doi.org/10.1103/physreva.42.7504
Abstract
We study the stability of the stationary, spatially localized states of traveling-wave convection recently described by Niemela, Ahlers, and Cannell [Phys. Rev. Lett. 64, 1365 (1990)] and by Anderson and Behringer [Phys. Lett. A 145, 323 (1990)] by bombarding them with propagating wave packets. At sufficiently large incident amplitude, this can lead to the destruction of the localized state and to a transition to a new state. Sufficiently far above the onset of convection, this process is triggered by spontaneously arising propagating fluctuations, causing convection to fill the experimental cell.Keywords
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