Majda, Andrew J., Andrea L. Bertozzi, "Vorticity and Incompressible Flow".
An airplane belonging to Panair do Brasil passed within the vicinity of the vorticity and as a result reported the formation of a tropical storm.
Carl-Gustaf Rossby first introduced potential vorticity in his 1936 paper "Dynamics of steady ocean currents in the light of experimental fluid mechanics".
unstable: for example, the world lines of the dust particles in the Gödel solution have vanishing shear, expansion, and acceleration, but constant vorticity just balancing a constant Raychuadhuri scalar due to nonzero vacuum energy ("cosmological constant").
Vorticity confinement (VC), a physics-based computational fluid dynamics model analogous to shock capturing methods, was invented by Dr. John Steinhoff, professor at the University of Tennessee Space Institute, in the late 1980s