The ABC flow, a three-parameter velocity field that provides a simple stationary solution of Euler's equations in three dimensions for incompressible, inviscid fluid flows, can be considered to be a prototype for the study of turbulence. It is named after V. Arnold, E. Beltrami, and S. Childress.

Trajectories for a set of initial conditions differing by factors of are shown; as you increase the value, the number of initial conditions decreases.