Spatio-temporal regimes in Rayleigh–Bénard convection in a small rectangular cell

Year: 1989

Authors: Rubio M.A., Bigazzi P., Albavetti L., Ciliberto S.

Autors Affiliation: Istituto Nazionale di Ottica, Largo Enrico Fermi 6, 50125 Arcetri-Firenze, Italy;
Departamento de Fisica Fundamental, Facultad de Ciencias. U.N.E.D., Aptdo. Correos 60141. Madrid, 28080, Spain

Abstract: By means of an original optical technique we have studied the spatio-temporal behaviour in a Rayleigh–Bénard convection experiment of small rectangular geometry. The experimental technique allows complete reconstruction of the temperature field integrated along the roll axis. Two main spatiotemporal regimes have been found, corresponding to localized oscillations and travelling waves respectively. Several parameters are proposed for the quantitative characterization of this complex behaviour.

Journal/Review: JOURNAL OF FLUID MECHANICS

Volume: 209      Pages from: 309  to: 334

KeyWords: spatio-temporal behaviour; Rayleigh–Bénard convection;
DOI: 10.1017/S0022112089003125

Citations: 14
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