Noise/Chaos Distinction Applied to the Study of a Fluidized Bed

N. Letaief , C. Rozé , G. Gouesbet

The observation of chaos in fluidization have been claimed by some authors. We analyze the dynamics of a gas-solid fluidized bed and demonstrate that the dynamics is not chaotic but noisy. The random process is studied by using the Hurst analysis in order to look for long-term correlations in the signals. The dynamics may then be modelled by a fractal Brownian motion process.

Domaines: Articles anciens

N. Letaief, C. Rozé, G. Gouesbet. Noise/Chaos Distinction Applied to the Study of a Fluidized Bed. Journal de Physique II, 1995, 5 (12), pp.1883-1899. ⟨10.1051/jp2:1995218⟩. ⟨jpa-00248276⟩