Pressure Profile for Column of Multiple Fluids

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This Demonstration shows the effects of fluid height and density on hydrostatic pressure. You can vary fluid height and density of each fluid with sliders. This results in a total hydrostatic pressure profile that indicates the gage pressure at different heights in the container.

Contributed by: Jon Barbieri (May 2014)
Additional contributions by: Garret D. Nicodemus and Rachael L. Baumann
(University of Colorado Boulder, Department of Chemical and Biological Engineering)
Open content licensed under CC BY-NC-SA


Snapshots


Details

Hydrostatic pressure is calculated by:

,

where is hydrostatic gage pressure (kPa), is fluid density (), is the gravitational constant and is fluid height (m).

In order to calculate the total pressure inside the container, the individual fluid pressure is added to the pressure acting on the fluid from above:

,

,

,

.

Plotting hydrostatic pressure versus height for each fluid generates a pressure profile for the container.



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