Coding Challenge : Visualizing Convective Air Flow

I think it would be interesting to see the air convection flow around a single source of heat.
Some kind of visualization of the air flow around a candle for example.
Maybe by assigning a heat value to specific areas and realizing movement based on heat radiation and the density of hot or cold air.

The issue names no files, tests, or entry points; begin by clarifying the visualization and simulation scope from the candle and heat-value examples. Done would be a visualization of convective airflow around a single heat source.

Written by the indexing model from the issue text.