Vortex dynamics in rotating counterflow and plane Couette and Poiseuille turbulence in superfluid Helium

Details Vortex dynamics in rotating counterflow and plane Couette and Poiseuille turbulence in superfluid Helium Vortex dynamics in rotating counterflow and plane Couette and Poiseuille turbulence in superfluid Helium

2008-03-17

arxiv.org/abs/0803.2493v1

Physics

Condensed Matter

Other Condensed Matter

18 pages, 2 figures

Scientific paper

10.1103/PhysRevB.78.024524

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.

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