“ This is not the smoothness problem solution, but rather the Burgers vortex, an exact solution of the Navier–Stokes equations published by J. M. Burgers in 194

“ This is not the smoothness problem solution, but rather the Burgers vortex, an exact solution of the Navier–Stokes equations published by J. M. Burgers in 1948, chosen because it has the same anatomy: fluid drawn inward in a plane, stretched along the axis and thrown out of both ends, spinning fastest in a core.”