  Using the classical field method, we study numerically the characteristics
and decay of the turbulent tangle of superfluid vortices which is created in
the evolution of a Bose gas from highly nonequilibrium initial conditions. By
analysing the vortex line density, the energy spectrum and the velocity
correlation function, we determine that the turbulence resulting from this
effective thermal quench lacks the coherent structures and the Kolmogorov
scaling; these properties are typical of both ordinary classical fluids and of
superfluid helium when driven by grids or propellers. Instead, thermal quench
turbulence has properties akin to a random flow, more similar to another
turbulent regime called ultra-quantum turbulence which has been observed in
superfluid helium.
