KOLMOGOROV TURBULENCE IN LOW-TEMPERATURE SUPERFLOWS

Low-temperature decaying superfluid turbulence is studied using the no nlinear Schrodinger equation in the geometry of the Taylor-Green (TG) vortex flow with resolutions up to 512(3). The rate of (irreversible) kinetic energy transfer in the superfluid TG vortex is found to be com parable to that of the viscous TG vortex. At the moment of maximum dis sipation, the energy spectrum of the superflow has an inertial range c ompatible with Kolmogorov's scaling. Physical-space visualizations sho w that the vorticity dynamics of the superflow is similar to that of t he viscous flow, including vortex reconnection. The implications to ex periments in low-temperature helium are discussed.