This is a 2+1D hydrodynamical simulations for one particular heavy-ion collisions from the OSU group. The Quark-Gluon Plasma (QGP) is created shortly after the two heavy nuclei touched each other and the afterward evolution is hydrodynamical; with particle emission sampled using Cooper-Frye formula.

In the following video, you will watch the evolution of energy density and flow velocity in Au+Au collisions at 200A GeV at RHIC and Pb+Pb collisions at 2.76A TeV at LHC.