Oscillatory binary fluid convection in large aspect-ratio containers.
Direct numerical simulations of chevrons, blinking states, and repeated transients in binary fluid mixtures with a negative separation ratio heated from below are described. The calculations are performed in two-dimensional containers for experimental parameter values and boundary conditions. Quantitative agreement with the experiments of Kolodner [Phys. Rev. E 47, 1038 (1993)] is obtained, and the origin of the blinking and repeated transient states is elucidated.
Batiste
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Departament de Física Aplicada, Universitat Politécnica de Catalunya, Barcelona, Spain.
Net
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Mercader
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Knobloch
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