Convection in rotating annuli: Ginzburg-Landau equations with tunable coefficients

Details Convection in rotating annuli: Ginzburg-Landau equations with tunable coefficients Convection in rotating annuli: Ginzburg-Landau equations with tunable coefficients

1996-09-12

arxiv.org/abs/patt-sol/9609002v1

Nonlinear Sciences

Pattern Formation and Solitons

4 pages (latex,multicol,epsf) including 3 figures

Scientific paper

The coefficients of the complex Ginzburg-Landau equations that describe weakly nonlinear convection in a large rotating annulus are calculated for a range of Prandtl numbers $\sigma$. For fluids with $\sigma \approx 0.15$, we show that the rotation rate can tune the coefficients of the corresponding amplitude equations from regimes where coherent patterns prevail to regimes of spatio-temporal chaos.

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