Pressure Profile for Column of Multiple Fluids
This Demonstration shows the effects of fluid height and density on hydrostatic pressure. You can vary both the absolute fluid height and density of the bottom fluid (blue). The middle fluid (orange) and top fluid (green) variables are adjusted with respect to the bottom fluid. This results in a total hydrostatic pressure that indicates the gauge pressure at different heights in the container.

Download the CDF file to view the simulation using the free Wolfram CDF player.