Time-dependence for the Compression of Heterogeneous Mixtures Far From Equilibrium

The dynamic material properties of real materials depend crucially upon the thermodynamics of the composite system. For systems of heterogeneous composition, or those far from a state of equilibrium, the characteristic feature is the presence of interfaces. Material interfaces present new challenges to the theory and simulation of dynamic materials processes, given the need to go beyond the assumption of pressure and temperature equilibrium typically employed for the description of bulk material mixtures. We present here a new approach to the hydrodynamic simulation of a composite system out-of-equilibrium, containing pressure and temperature gradients due to an interface.