Non-chaotic Rayleigh-Benard convection with more than three incommensurate frequencies.
01 January 1984
The onset of time dependence of Rayleigh-Benard convection in water is studied in a rectangular container with aspect ratio 9.5 x 4.6. Quasi-periodic states are observed exhibiting four and five incommensurate frequencies. Nonlinear coupling of these modes is observed, yet all but one of the modes are predominantly localized in different parts of the cell. This localization may explain the co-existence of more than three incommensurate frequencies without chaos.