The initial state consists of two fluid domains separated by a membrane at z = 0, with initial conditions (k_B T_L, P_L, n_L) = (0.4 GeV, 5.43 GeV/fm³, 13.57 fm^-3) and (k_B T_R, P_R, n_R) = (0.2 GeV, 0.33 GeV/fm³, 1.66 fm^-3).

The animation shows the evolution of the density profile throughout the channel between ct = 0 and ct = 3.2 fm. The curves correspond to different values of the viscosity-to-entropy ratio and the fixed blue curve represents the analytic solution in the inviscid case.

For more details, please see our preprint (arXiv:1612.01287 [physics.flu-dyn]).