Rise of a density inhomogeneity in a stratified fluid
This page shows results from a BEARCLAW computation of the rise of a lower density bubble (
) through a stratified fluid in a box with impermeable walls. The Navier-Stokes equations are solved in the Boussinesq approximation. Figures below show bubble just before reaching the linearly stratified region. Two types of representations are shown:
Contour plots of the density perturbation with respect to a background density that increases linearly from top (
) to box midpoint (
), and is then constant to box bottom. Velocity vectors are sampled every 16 grid cells. - Topographic plots which show the density perturbation as a height above the zero level that corresponds to the background density.
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Infinite Schmidt number computations
512x512 single grid
Bubble is enclosed by an ~50x50 grid. Reynolds number is 100.
