Fluid dynamics governs everything from blood flow in arteries to weather patterns across continents, from airplane lift to ocean currents that regulate climate. It is one of the most practically important and mathematically challenging branches of physics — the Navier-Stokes existence and smoothness problem remains one of the seven Millennium Prize Problems with a $1 million reward.
These simulations explore key fluid phenomena. Watch the transition from smooth laminar flow to chaotic turbulence, see how Bernoulli's principle creates lift, observe diffusion spreading particles through a medium, and explore how viscosity determines a fluid's resistance to flow.