Two alternative evolution equations for the vortex line density L in counterflow superfluid turbulence in 4He were proposed by Vinen in 1958. These equations was recently generalized to counterflow superfluid turbulence in rotating containers. Here, according with the formalism of Non-Equilibrium Thermodynamics, the compatibility between the alternative Vinen equation as evolution equation for the vortex line density in rotating counterflow turbulence and the velocity of the superfluid component is studied. From the compatibility request a new term dependent on the anisotropy of the tangle arises.
SCIACCA M (2008). Non-Equilibrium Thermodinamic analysis of rotating counterflow superfluid turbulence. In BRUGARINO TOMMASO, MONGIOVI' MARIA STELLA (a cura di), Bollettino di Matematica Pura e Applicata (pp. 195-204). ROMA : Aracne editrice.
Non-Equilibrium Thermodinamic analysis of rotating counterflow superfluid turbulence
SCIACCA, Michele
2008-01-01
Abstract
Two alternative evolution equations for the vortex line density L in counterflow superfluid turbulence in 4He were proposed by Vinen in 1958. These equations was recently generalized to counterflow superfluid turbulence in rotating containers. Here, according with the formalism of Non-Equilibrium Thermodynamics, the compatibility between the alternative Vinen equation as evolution equation for the vortex line density in rotating counterflow turbulence and the velocity of the superfluid component is studied. From the compatibility request a new term dependent on the anisotropy of the tangle arises.
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