Whoever said that mathematics and art are two completely unrelated subjects never had a look at images created from complex liquid dynamics
Supercomputers used to process liquid dynamics can produce some stunning flow visualizations. These images represent complicated fluid flows, and were created by researchers at the Laboratory for Computational Science and Engineering, University of Minnesota. The images are indicative of two different instability dynamics present in certain fluids.
The first type is known as the Rayleigh–Taylor instability which occurs when a lighter fluid pushes against a heavier fluid -- such as when water and light oil are combined. The second type is known as the Kelvin–Helmholtz instability and occurs when there is velocity shear in a single continuous fluid -- such as the ripples created when wind blows across the surface of water.
You can find these images LCSE Multimedia Gallery. Unsurprisingly, they make for totally awesome screen savers.