Non-stationary oblique shock wave reflections for fluids in the
dense gas regime
are examined for selected cases. A time-accurate predictor-corrector TVD
scheme
with reflective boundary conditions for solving the Euler equations simulates
the
evolution of a wave field for an inviscid van der Waals gas near the thermodynamic
critical point. The simulated cases involve shock tube flows with compressive
wedges
and circular arcs. Non-classical phenomena, such as disintegrating shocks,
expansion
shocks, composite waves, etc., demonstrate significant differences from
perfect gas
flow fields over similar geometries. Detailed displays of wave field structures
and
thermodynamic states for the dense gas flow fields are presented and analysed.