A 'Soapy' Solution

Color film.

Color film. Researchers used soap films to confirm a long-standing theory about mixing in turbulent liquids. The different colors arise from different thicknesses in the film. Image Credit: H. Bordeaux/ Univ. Bordeau

Researchers have been frustrated in their attempts to confirm the long-standing theory that describes how dyes mix in turbulent liquids. Now a team reports that they have used the thickness variations signified by colors in a soap film in place of dyes to track mixing and have finally verified the theory, which is widely used in industry to calculate the mixing of chemicals and pollutants.

Read more about this research at Physical Review Focus.
Text courtesy of Physical Review Focus.