Plume generation in natural thermal convection at high Rayleigh and Prandtl numbers
We study natural thermal convection of a fluid (corn syrup) with a large Prandtl number (103-107) and temperature-dependent viscosity. The experimental tank (1 x 1 x 0.3 m) is heated from below with insulating top and side boundaries, so that the fluid experiences secular heating as experiments proceed. This setup allows a focused study of thermal plumes from the bottom boundary layer over a range of Rayleigh numbers relevant to convective plumes in the deep interior of the Earth's mantle. The...[Show more]
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|Source:||Journal of Fluid Mechanics|
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