This is a continuation of the study of the effects of varying radius, velocity, and approximity of
two offset orthogonal vortex tubes in a periodic cube using the Burnham-Hallock approximation.
(BH)
The differences with the Lamb-Oseen solution are expolored. The distance between the two vortex centers is
5, with unequal radial envolopes. The vortex tube along x is given a 50% enlargement (shown above the y vortex tube).