Brief Analysis of Vorticity in Soil Hydrodynamics
  This note discusses basic properties of vorticity in groundwater flow theory. An evolution equation for the vorticity vector is derived to demonstrate that, when present, vorticity decreases very rapidly. In addition, it is shown how vorticity affects, though very little, the hydraulic head directional variation in the vicinity of a point. 
Jos\'e Jorge Nader
physics.flu-dyn