Vortex dynamics in rotating counterflow and plane Couette and Poiseuille   turbulence in superfluid Helium
  An equation previously proposed to describe the evolution of vortex line density in rotating counterflow turbulent tangles in superfluid helium is generalized to incorporate nonvanishing barycentric velocity and velocity gradients. Our generalization is compared with an analogous approach proposed by Lipniacki, and with experimental results by Swanson et al. in rotating counterflow, and it is used to evaluate the vortex density in plane Couette and Poiseuille flows of superfluid helium. 
David Jou, Michele Sciacca and Maria Stella Mongiovi'