13_[Hine]Bubble_Turbulence_lowres_72dpi.1662496483.jpg
Turbulence Within a Soap Film Bubble —Alexander Hine, Thomas Preskett & Tom Griffiths (University of Southampton)

The chaotic patterns in a soap film are an example two-dimensional turbulence. This bubble was created using water and a weak dilution of detergent and sugar. In the thin wall of the bubble, vortex stretching is restricted, enstrophy is conserved, and different inertial range scalings occur than in 3D turbulence.

https://fluids.ac.uk/files/13_[Hine]Bubble_Turbulence_lowres_72dpi.1662496483.jpg