  We develop a computational model of quantum turbulence decay employing a
kinematic prescription for the normal fluid. We find that after an initial
transient, the length of the vortex tangle L decreases and for large times
obeys a scaling law with a -0.45 exponent. The average magnitude (along the
quantized vortices) of the superfluid and line-vortex velocity are close and
differ significantly from the average magnitude of the normal fluid velocity.
