Hydrodynamical evolution

• Relativistic hydro equations (local conservation of energy-momentum & any charge)

• (Usual) approximations:

• - Ideal (non-viscous) fluid:

• - Lorentz boost invariant in longitudinal dir. (Bjorken scaling).

• Equation-of-State (relation between thermodynamical vars. of system):

• P = P(ε,n) “closes” the system of eqs. (given initial conditions)

• [Numerical solution via MacCormack method]