High Rayleigh-Number Convection.

Movie shows evolution of temperature from initial non-convecting state. The bottom of the region is given a high temperature and the top kept cooler. Colours represent temperature (Red=hottest, blue=coolest). This system is strongly convective. A broad range of spatial frequencies has lower energy than the uniform, non-convecting solution, admitting localised structures.

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Copyright 1995 AGCRC